https://padlet.com/s1149772/dqca5iw859qjq2mk en-us 2023-09-21 15:19:45 UTC 2023-09-22 15:35:53 UTC hello@padlet.com s1149772 https://padlet.com/s1149772/dqca5iw859qjq2mk/wish/2714847125 Atoms contain protons, neutron, and electrons. Protons have a positive electrical charge while electrons have a negative electrical charge. Neutrons have no electrical charge. Protons are located in the nucleus along with the neutrons. Electrons are located in the outer shell also known as the valence shell. The mass number is equal to the number of protons and neutrons in the nucleus which helps identify the element in the periodic table.]]> 2023-09-21 15:27:29 UTC https://padlet.com/s1149772/dqca5iw859qjq2mk/wish/2714847125 s1149772 https://padlet.com/s1149772/dqca5iw859qjq2mk/wish/2714855755 The element Gallium had 31 protons, 39 neutrons, and 31 electrons. The rounded mass value is 69.74, the original mass is 69.716. It has 3 valence electrons. Gallium is often used for electronic circuits, semiconductors and light emitting diodes. Gallium does not occur free in nature. You can melt it in the palm of your hand. Of all the elements, gallium has the highest temperature rage as a liquid. Unlike most substances, Gallium expands when it freezes. Gallium is considered as a precious metal.]]> 2023-09-21 15:33:01 UTC https://padlet.com/s1149772/dqca5iw859qjq2mk/wish/2714855755 s1149772 https://padlet.com/s1149772/dqca5iw859qjq2mk/wish/2716512084 The element Lithium contains 3 protons, 3 electrons, and 4 neutrons. The rounded mass value is 7, but the original mass value is 6.941. Lithium has 1 valence electron. Lithium is often used in rechargeable batteries for phones, laptops, digital cameras and electric vehicles. Lithium does not occur free in nature. Lithium's melting temp is 356.90 °F. Although it is metal, it is soft enough to cut with a knife. It is so light it can float on water. Lithium is also used to make heat resistant glass.]]> 2023-09-22 15:12:50 UTC https://padlet.com/s1149772/dqca5iw859qjq2mk/wish/2716512084 s1149772 https://padlet.com/s1149772/dqca5iw859qjq2mk/wish/2716528804 Gold has exactly 79 protons, 79 electrons, and 118 neutrons. Its rounded mass value is 197, but its regular mass value is 196.96657. Gold has 11 valence electrons. Gold is often used to make jewellery, wedding rings, Olympic medals, money, Oscars, grammys, crucifixes, art, and many more. Gold occurs free in nature. Golds melting point is 1,948°F. Gold does not rust or lose its shine. Gold is the only yellow metal. Pure gold will melt at 1064.43° and boils at 2856.1°. Nearly all the gold on Earth came from meteorites that bombarded the planet over 200 million years after it formed.]]> 2023-09-22 15:24:11 UTC https://padlet.com/s1149772/dqca5iw859qjq2mk/wish/2716528804 s1149772 https://padlet.com/s1149772/dqca5iw859qjq2mk/wish/2716537645 The element Neon has 10 protons, 10 electrons, and 10 neutrons. Neon's rounded mass value is 20g, but its regular mass value is 20.1797. It has 8 valence electrons. Neons melting point is at -248.6° C. Neon is  Colourless, odourless, tasteless, and lighter than air. Neon is quite rare on earth. It is the second-lightest noble gas, with helium being the first. It changes to reddish-orange color in vacuum tube. It is chemically inactive. Neon has the lowest liquid range of any element.]]> 2023-09-22 15:30:30 UTC https://padlet.com/s1149772/dqca5iw859qjq2mk/wish/2716537645 s1149772 https://padlet.com/s1149772/dqca5iw859qjq2mk/wish/2716544762 Chlorine has 17 protons, 17 electrons, and 18 neutrons. Chlorine's rounded mass value is 35.5u, but the regular mass value is 35.453. it has 7 valence electrons. Chlorine is among the ten highest volume chemicals manufactured in the United States. It rarely occurs free in nature. Chlorine is the third most abundant element in the Earth's oceans. Chlorine gas is has a yellow-green color and a strong smell. Chlorine is two and one half times as heavy as air, has an intensely disagreeable suffocating odor, and is exceedingly poisonous.]]> 2023-09-22 15:35:53 UTC https://padlet.com/s1149772/dqca5iw859qjq2mk/wish/2716544762