First 20 elements of the periodic table by https://padlet.com/ppedrazae/o6qc3mc5ruljuyly en-us 2020-09-07 16:58:01 UTC 2025-10-23 03:03:20 UTC hello@padlet.com Hydrogen (H) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/725173659 Hydrogen is the first element in the periodic table. It is the simplest possible atom, hydrogen is the lightest of the elements and is the most abundant element in the universe.
Where can be found?
The most common place to find hydrogen on earth is in water. Hydrogen is also found in a wide range of compounds throughout the earth including hydrocarbons, acids, and hydroxides.
Uses
Hydrogen is a very useful element. It is used to make ammonia for fertilizers, refining metals, and methanol for making artificial material like plastics. Hydrogen is also used as a rocket fuel where liquid hydrogen is combined with liquid oxygen to produce a powerful explosion. Scientists hope that someday hydrogen can be used as a clean fuel alternative to gasoline.
Interesting facts
  • Scientists estimate that Hydrogen makes up over 90% of all the atoms in the universe
  • It is the only element that can exist without neutrons.
  • Around 10% of the mass of the human body is hydrogen.
]]> 2020-09-07 17:17:21 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/725173659 Helium (He) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727416362 Helium is the second lightest and second most common element in the universe. It is at the top of the noble gas group in the periodic table.
Where can be found?
There is very little in the Earth's atmosphere because it is so light that it eventually escapes into outer space.
Scientists believe that most of the helium in the universe was created at the formation of the universe. However, new helium is created in the center of stars and also as part of radioactive decay on Earth.
Uses
Helium is used in balloons and airships to make them float.
Interesting facts 
  • In general, helium will not combine with itself to create molecules, but is found as a single atom
  • The speed of sound in helium is around three times the speed of sound in the air. This causes people's voices to get high pitched and squeaky when they breathe helium.
]]> 2020-09-08 14:38:46 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727416362 Lithium (Li) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727432221 Lithium is part of the alkali metal group.
Where can be found
Because it is so reactive, lithium is not found in its pure form in nature. However, it is found throughout the world in a variety of areas including seawater, mineral springs, and igneous rocks.
Uses
Lithium is used for batteries. Another application is used in ceramics and glass. Also they used it to include lubricating greases, high performance aircraft materials, and anti-depression drugs.
Interesting facts 
  • Because it is the lightest metal, it can be mixed with other metals such as aluminum and copper to make strong lightweight metals.
  • Although it is a metal, it is soft enough to cut with a knife.
]]> 2020-09-08 14:41:32 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727432221 Beryllium (Be) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727500486 Beryllium is a very rare metal that is almost never found in its pure form. It is part of the alkaline earth metal group.
Where can be found?
Beryllium is often found in the minerals beryl and bertrandite. It is found in the Earth's crust and mostly in igneous rocks. Most of the world's beryllium is mined.
Beryllium is also found in gems such as the emerald and aquamarine.
Uses
Beryllium is used in a number of applications. Many of its uses are high tech or military. One application is in windows for X-ray machines. Beryllium is unique in its ability to appear transparent to X-rays. Another use is as a moderator and a shield in nuclear reactors.

Beryllium is also used to make metal alloys such as beryllium copper and beryllium nickel. These alloys are used to make surgical instruments, precision instruments, and non-sparking tools that are used near flammable gases.
Interesting facts
  • It was originally discovered in a compound with oxygen called beryllium oxide.
  • Too much exposure to beryllium can cause a lung disease called berylliosis.
]]> 2020-09-08 14:53:16 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727500486 Boron (B) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727507421 Boron is classified as a metalloid which means that its properties are in between that of a metal and a nonmetal.
Where can be found?
Boron is a rare element on Earth. Pure boron is not found naturally on earth, but the element is found in many compounds. The most common compounds are borax and kernite which are found in sedimentary rock formations.
Uses
Most of the boron that is mined is eventually refined into boric acid or borax. Boric acid is used in a number of applications including insecticides, flame retardants, antiseptics, and to create other compounds. Borax is a powdered material used in detergents, cosmetics, and enamel glazes.

Boron is used to make  glass and ceramics. It produces high end cookware materials. It also helps to make glassware for science labs. Other applications that use boron include semiconductors  magnets, super hard materials, and shielding for nuclear reactors.
Interesting facts
  • Boron is an important mineral for plant life.
  • Scientists think that boron has potential as a medicine to treat arthritis.
  • It is generally not considered poisonous, but can be toxic in large doses.
]]> 2020-09-08 14:54:33 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727507421 Carbon (C) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727512544 Carbon is one of the most important elements to life on planet Earth. It forms more compounds than any other element and forms the basis to all plant and animal life. Carbon is the fourth most abundant element in the universe by mass and the second most abundant element in the human body.
Where can be found?
Carbon is found throughout the earth. It is a major element in many rock formations. Carbon is also found in many compounds including carbon dioxide in the Earth's atmosphere and dissolved in the oceans and other major bodies of water. Carbon is found in all forms of life. It makes up 18 percent of the human body by mass.
Uses
It is used to make all sorts of materials including plastics and alloys such as steel (a combination of carbon and iron). It is even used to make black ink for printers and painting.
Graphite is often used in making batteries, brakes, and lubricants. It is also used to make the writing (black) part of pencils.
Diamonds are also used for their hardness in cutting tools and precision instruments.
Interesting facts
  • Life on Earth is generally referred to as "carbon-based life."
  • Carbon is the fourth most abundant element in the universe and typically the fourth most abundant element in stars.
]]> 2020-09-08 14:55:27 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727512544 Nitrogen (N) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727739690 Nitrogen is part of the group of "other" nonmetal elements.
Nitrogen plays an important role in the life of plants and animals on earth through the nitrogen cycle.
Where can be found?
the most common element in our air is nitrogen. The Earth atmosphere is 78% nitrogen gas or N2.
Even though there is so much nitrogen in the air, there is very little in the earth's crust. Nitrogen can also be found in all living organisms on Earth including plants and animals. It plays an important role in proteins and nucleic acids.
Uses
The primary industrial use of nitrogen is to make ammonia. The process  is called the Haber process where nitrogen and hydrogen are combined to make NH3. Ammonia is then used to create fertilizers, nitric acid, and explosives.
It is thought to be around the seventh most abundant element in the universe by mass.
Interesting facts
  • Nitrogen is the fourth most abundant element in the human body by mass. It accounts for around three percent of the mass of the human body.
  • It is produced deep inside stars by a process called fusion
]]> 2020-09-08 15:35:00 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727739690 Oxygen (O) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727741827 Oxygen is an important element that is needed by most life forms on Earth to survive. It is the third most abundant element in the universe and the most abundant element in the human body.
Where can be found?
Oxygen is found all around us. It is one of the most important elements on planet earth. Oxygen makes up around 21% of the earth atmosphere and 50% of the mass of the earth's crust. Oxygen is one of the atoms that makes up water.
Uses
Oxygen is used by animals and plants in the respiration process. Tanks of oxygen are used in medicine to treat people with breathing problems. They are also used as life support for astronauts and scuba divers.
The majority of the oxygen used in industry is used in the manufacturing of steel. Other applications include making new compounds such as plastics and creating a very hot flame for welding. Liquid oxygen is combined with liquid hydrogen to make rocket fuel.
Interesting facts
  • The oxygen that is found in the air is produced by photosynthesis. Without plants, there would be very little oxygen in the air.
  • Oxygen dissolves in cool water easier than in warm water.
]]> 2020-09-08 15:35:22 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727741827 Fluorine (F) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727743163 Fluorine is the first element in the group of halogens. It is a rare element in the universe, but is the thirteenth most common element in the earth's crust.
Where can be found?
Because it is so reactive, fluorine does not occur in nature. It is found in minerals in the Earth's crust. The main source of commercial fluorine is fluorspar the majority of the world's fluorspar is supplied by China and Mexico.
Uses
Fluorine is rarely used in its pure form, but many compounds of fluorine are used. One of the most popular is fluorine used for refrigerant gases. Today they have been banned because they damage the ozone layer.
Fluoride is a reduced form of fluorine when bonded to another element. Fluoride is helpful in preventing tooth decay and is used in tap water and toothpaste.
Other applications that use fluorine include high temperature plastics, the smelting of iron and metal production, pharmaceuticals, etching glass, and in processing nuclear fuel.
Interesting facts
  • The bond formed between carbon and fluorine to make fluorocarbons is the strongest bond in organic chemistry and is very stable
  • It is found in the gemstone topaz.
]]> 2020-09-08 15:35:36 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727743163 Neon (Ne) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727747048 Neon is the second noble gas located in column 18 of the period table. Neon is the fifth most abundant element in the universe.
Where can be found?
Neon is a very rare element on Earth. It is found in very small traces in both the earth's atmosphere and the earth's crust.
Neon is a much more common element in stars and is the fifth most abundant element in the universe. It is created during the alpha process of stars when helium and oxygen are mixed together.
Uses
Neon is used in lighting signs that are often called "neon" signs. However, neon is only used to produce a reddish orange glow.
Other applications that use neon include lasers, television tubes, and vacuum tubes. The liquid form of neon is used for refrigeration and is considered a more effective refrigerant than liquid helium.
Interesting Facts 
  • Neon gas and liquid are fairly expensive because they have to be recovered from air.
  • Neon gas is monatomic, meaning that its atoms don't bond like oxygen and nitrogen. This makes it "lighter than air."
]]> 2020-09-08 15:36:18 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727747048 Sodium (Na) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727749479 Sodium is an alkali metal.
Where can be found?
Sodium  is never found in its pure form because it is so reactive. It is only found in compounds such as sodium chloride  or table salt. Sodium chloride is found in ocean water, salt lakes, and underground deposits. Pure sodium can be recovered from sodium chloride through electrolysis.
Uses
Sodium is primarily used in the form of compounds with other elements.
The average person uses sodium every day in the form of table salt in their food. Table salt is needed for animals to survive, but most people use it for adding flavor to their food. Another popular use of sodium is in baking soda which is the chemical compound sodium bicarbonate.
Interesting facts 
  • It helps to maintain the proper fluid balance in the body's cells and also helps us to digest our food.
  • Sodium is considered non-toxic, but too much of it can cause high blood pressure.
]]> 2020-09-08 15:36:44 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727749479 Magnesium (Mg) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727751514 Magnesium is an alkaline earth metal and it is the eighth most abundant element on Earth.
Where can be found?
Magnesium is quite abundant on earth in compounds and is found in over 60 different minerals in the earth's crust. The compound magnesium oxide is the second most abundant compound in the earth's crust making up around 35% of the crust by weight.
A significant amount of Magnesium is also found dissolved in ocean water.
Uses
One of the main uses of magnesium metal is in metal mixtures. This is because it is both strong and light. It is often mixed with aluminum, zinc, manganese, silicon, and copper to make strong and light mixtures for use as automobile parts, aircraft components, and missiles.
Magnesium metal is also used in electronic things. Its light weight and good electrical properties make it a good element for use in cameras, mobile phones, laptop computers, and other handheld electronic components.

Another application of magnesium is in various compounds. Some compounds are used as medicines such as magnesium hydroxide which used to help indigestion (Milk of Magnesia) and magnesium sulfate (Epsom salts) which is used in baths to soothe sore muscles.
The human body needs magnesium for good health. It is used to make proteins, strong bones, and to regulate the body's temperature.
Interesting facts
  • Magnesium is sometimes used to help shorten the length of migraine headaches.
  • A magnesium fire is very difficult to put out as it can burn in nitrogen, carbon dioxide, and water.
]]> 2020-09-08 15:37:06 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/727751514 Aluminum (Al) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/728330529 Aluminum is classified as a post-transition metal and a "poor metal".
Aluminum is a fairly soft, strong, and lightweight metal. Its color is silvery-gray.
Where can be found?
Aluminum is  found in the Earth's crust, it is generally found on Earth in minerals and compounds.
Uses
Aluminum is used in thousands of products. It is often used as a metal because of its light weight.
Most aluminum metal used in industry in which they mix aluminum  with other elements such as copper, zinc, silicon, and magnesium. Applications for aluminum mixtures include soda cans, automobile parts, bicycles, aluminum foil, power lines, siding for houses, and even baseball bats.
Interesting facts
  • It makes up around 8% of the Earth's crust by weight.
  • In the mid-1800s aluminum was more expensive than gold.
]]> 2020-09-08 17:23:46 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/728330529 Silicon ( Si) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/729156155 Silicon is classified as a member of the metalloids. Silicon is the eighth most abundant element in the universe and the second most abundant in the Earth's crust after oxygen.
Where can be found
Silicon makes up about 28% of the Earth's crust. It is generally not found on Earth in its free form, but is usually found in silicate minerals.
Uses
 Most applications of silicon use silicate minerals. These include glass, ceramics, and abrasives. Silicates are also used to make Portland cement which is used to make concrete and stucco.
 Silicones are used to make lubricants, greases, rubber materials, waterproofing materials, and caulks.
Pure silicon is used in the manufacture of semiconductor chips for electronics. These chips form the brains of today's electronics including computers, televisions, video game consoles, and mobile phones
Interesting facts 
  • Silicon has the relatively unique property for an element in that it expands when it freezes like water.
  • The most abundant compound in the Earth's crust is silicon dioxide.
]]> 2020-09-08 20:43:40 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/729156155 Phosphorus (P) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/729158922 Phosphorus is classified as a nonmetal.
Where can be found?
Phosphorus is not found in its pure  form on Earth, but it is found in many minerals called phosphates. Most commercial phosphorus is produced by mining and heating calcium phosphate.
Phosphorus is also found in the human body. It is the sixth most abundant element in the human body.
Uses
Phosphorus is used to make fertilizers. This is because phosphorus is a key element in the growth of plants.
Red phosphorus is used in making pesticides and safety matches.
Phosphorus is an important element in the functioning of the human body and is essential for life. It is used in the DNA molecule and is a main ingredient in our bones and teeth. We get phosphorus from foods such as beans, nuts, eggs, fish, milk, and chicken.
Interesting facts
  • Similar to the cycles of oxygen, carbon, and nitrogen, there is also a phosphorus cycle that is important to plant and animal life.
  • Touching white phosphorus can cause severe burns.
]]> 2020-09-08 20:44:53 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/729158922 Sulfur (S) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/729163064 Sulfur is classified as a nonmetal.
Where can be found?
Elemental sulfur can be found in many areas on Earth including volcanic emissions, hot springs, salt domes, and hydrothermal vents.
Uses
The majority of sulfur is used to make the chemical sulfuric acid. Sulfuric acid is the top chemical used by the world's industry. It is used to make car batteries, fertilizer, refine oil, process water, and to extract minerals.
Other applications for sulfur based chemicals include bleaching paper,  making products such as cement, detergents, and pesticides.

Sulfur also plays an important role in supporting life on Earth. It is the eighth most huge element in the human body. Sulfur is part of the proteins and enzymes that make up our bodies. It is important in making fats and strong bones.
Interesting facts
  • There is an important sulfur cycle that takes place on Earth similar to other element cycles like the carbon, oxygen, and nitrogen cycles.
  • Sulfur is created deep inside massive stars by the fusion of silicon and helium.
]]> 2020-09-08 20:46:47 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/729163064 Chlorine (Cl) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/729166604 Chlorine is classified as a member of the halogen group. It is about the twentieth most abundant element in the Earth's crust.
Where can be found?
Chlorine can be found in abundance in both the earth's crust and in ocean water. In the ocean, chlorine is found as part of the compound sodium chloride, also known as table salt. In the earth's crust, the most common minerals containing chlorine include halite , carnallite, and sylvite.
Uses
Chlorine is one of the most important chemicals used by industry, it is used in making a variety of products including insecticides, pharmaceuticals, cleaning products, textiles, and plastics.
You have probably heard people mention that chlorine is used in pools. Chlorine is used in pools to keep it clean and safe by killing bacteria, germs, and algae. It is also used in drinking water to kill bacteria so we don't get sick when we drink it. Because it kills germs, chlorine is also used in disinfectants and is the basis for most bleaches.

Chlorine is needed for the survival of animal life in the form of table salt. Our body's use it to help us digest food, move our muscles, and fight off germs.
Interesting facts
  • Around 1.9% of the ocean's mass is composed of chlorine atoms.
  • Most chlorine gas for industry is produced by using electrolysis on water that contains dissolved sodium chloride.
]]> 2020-09-08 20:48:07 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/729166604 Argon (Ar) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/729167579 Argon is the commonest noble gas, making up nearly one per cent of the earth's atmosphere.
Where can be found?
Argon is the most abundant of the noble gases in the earth´s atmosphere. It constitutes nearly 1%  of the volume of air making it the third most abundant element in air after nitrogen and oxygen. Argon is also found in small traces in the earth's crust and ocean waters.
Uses
Argon is usually produced from liquid air as a byproduct of the production of nitrogen and oxygen.
Because argon is the most abundant and cheapest of the noble gases, it is often used when an inert gas is needed. One of the main applications for argon is for the gas inside incandescent lighting. Because argon won't react with the filament used by light bulbs even at high temperatures, it helps the filament to last longer and keeps the glass of the bulb from blackening.
Argon is also used for welding, medical instruments, preserving wine, thermal insulation in windows, and in microelectronics.
Interesting facts
  • Large amounts of pure argon gas can be considered dangerous in closed areas because it is denser than air and will cause people to suffocate.
  • The argon gas in the Earth's atmosphere comes from the radioactive decay of potassium.
]]> 2020-09-08 20:48:31 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/729167579 Potassium (K) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/729168638 Potassium is classified as an alkali metal. Potassium is considered chemically similar to sodium, the alkali metal above it on the periodic table.
Where can be found?
Potassium is not found in its elemental form in nature. Instead it is found in different minerals such as sylvite, carnallite, langbeinite, and kainite. Most minerals that contain potassium are called as potash. Making up about 2.1% of the weight of the Earth's crust, potassium is the eighth most abundant element in the crust. It can also be found in ocean water where it is also about the eighth most abundant element.
Uses
The largest use of potassium is potassium chloride which is used to make fertilizers. This is because potassium is important for plant growth.
Industrial applications for potassium include soaps, detergents, gold mining, dyes, glass production, gunpowder, and batteries.
Potassium also plays a important role  in our bodies. It is used in muscle contraction, fluid and pH balance, bone health, and helps to prevent kidney stones. It is about the eighth most abundant element in the human body by weight.
Interesting facts
  • Some good sources of potassium in our diet include bananas, avocados, nuts, chocolate, parsley, and potatoes
  • Potassium chloride is sometimes used as a substitute for table salt.
]]> 2020-09-08 20:48:57 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/729168638 Calcium (Ca) ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/729171746 Calcium is classified as an alkaline earth metal. Calcium is an important element for life on Earth and is the fifth most abundant element in the earth's crust.
Where can be found?
Calcium is rarely found in its elemental form, but is  found throughout the Earth mostly in the form of rocks and minerals. It is the fifth most common element in the Earth's crust. Calcium is also found in ocean water and is about the eighth most abundant element found in the ocean.
Uses
Calcium has few industrial uses, but its compounds with other elements are widely used.
One important compound is calcium oxide (CaO), which is also called lime. Lime is used into the production of metals, removing pollution, and water purification. It is also used to produce additional chemicals. Gypsum is used to make plaster of Paris and drywall. Other applications include antacids, toothpaste, and fertilizer.
Calcium is also a very important element in both plant and animal life. In the human body calcium is part of a compound called hydroxyapatite which is what makes our bones and teeth hard. Calcium is the fifth most abundant element in the human body, making up around 1.4% of the body's mass.
Interesting facts
  • Calcium is an important element in the construction of corals.
  • Vitamin D is necessary for our bodies to absorb calcium.
]]> 2020-09-08 20:50:19 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/729171746 Biografy ppedrazae https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/742633653 https://www.rsc.org/periodic-table/element.
https://www.britannica.com/science
Wikipedia.]]> 2020-09-14 02:35:23 UTC https://padlet.com/ppedrazae/o6qc3mc5ruljuyly/wish/742633653