https://padlet.com/3009621/z41fxqxv2pfl Fuck en-us 2017-04-25 15:35:48 UTC 2023-07-16 20:11:58 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Terminator.png 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168148453  It is a member of the chalcogen group on the periodic table and is a highly reactive nonmetal and oxidizing agent that readily forms oxides]]> 2017-04-25 15:47:48 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168148453 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168149413 Lithium is a Group 1 (IA) element containing just a single valence electron ]]> 2017-04-25 15:50:30 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168149413 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168151491 Silicon is a chemical element with symbol Si and atomic number 14. A hard and brittle crystalline solid with a blue-gray metallic luster, it is a tetravalent metalloid.]]> 2017-04-25 15:56:55 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168151491 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168152190 Silver is the metallic element with the atomic number 47. Its symbol is Ag, from the Latin argentum, derived from the Greek ὰργὀς, and ultimately from a Proto-Indo-European language root reconstructed as *h₂erǵ-, "grey" or "shining"]]> 2017-04-25 15:59:16 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168152190 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168152872 Sulfur or sulphur (see spelling and etymology) is a chemical element with symbol S and atomic number 16. It is abundant, multivalent, and nonmetallic. Under normal conditions, sulfuratoms form cyclic octatomic molecules with a chemical formula S₈. ... In the Bible, sulfur is called brimstone.]]> 2017-04-25 16:01:45 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168152872 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168153686 History and Uses: Although sodium is the sixth most abundant element on earth and comprises about 2.6% of the earth's crust, it is a very reactive element and is never found free in nature. Pure sodium was first isolated by Sir Humphry Davy in 1807 through the electrolysis of caustic soda (NaOH).]]> 2017-04-25 16:04:28 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168153686 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168408206 Mercury is a chemical element with symbol Hg and atomic number 80. It is commonly known as quicksilver and was formerly named hydrargyrum.]]> 2017-04-26 15:28:46 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168408206 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168408775 Iron is a chemical element with symbol Fe and atomic number 26. It is a metal in the first transition series. It is by mass the most common element on Earth, forming much of Earth's outer and inner core.]]> 2017-04-26 15:30:30 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168408775 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168409438 Tin is a chemical element with symbol Sn and atomic number 50. It is a post-transition metal in group 14 of the periodic table. It is obtained chiefly from the mineral cassiterite, which contains tin dioxide, SnO₂.]]> 2017-04-26 15:32:29 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168409438 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168409785 Zinc is a chemical element with the symbol Zn and atomic number 30. It is the first element in group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn²⁺ and Mg²⁺ ions are of similar size.]]> 2017-04-26 15:33:34 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168409785 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168410315 It is sometimes found free in nature, but is usually obtained from the ores galena (PbS), anglesite (PbSO₄), cerussite (PbCO₃) and minum (Pb₃O₄). Although lead makes up only about 0.0013% of the earth's crust, it is not considered to be a rare element since it is easily mined and refined.]]> 2017-04-26 15:35:06 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168410315 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168410640 Neon is a chemical element with symbol Ne and atomic number 10 and is a noble gas. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air.]]> 2017-04-26 15:36:13 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168410640 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168411198 Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile.]]> 2017-04-26 15:37:51 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168411198 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168413677 Copper is a chemical element with symbol Cu (from Latin: cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity.]]> 2017-04-26 15:42:56 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168413677 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168414346 Gold is a chemical element with symbol Au and atomic number 79. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal and a group 11 element.]]> 2017-04-26 15:45:01 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168414346 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168414880 Helium is a chemical element with symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements.]]> 2017-04-26 15:46:43 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168414880 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168415410 Fluorine is a chemical element with symbol F and atomic number 9. It is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. As the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.]]> 2017-04-26 15:48:17 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168415410 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168416324 Carbon is a chemical element with symbol C and atomic number 6. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds.]]> 2017-04-26 15:51:01 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168416324 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168417115 Bromine. Bromine is a chemical element with symbol Br and atomic number 35. It is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas. Its properties are thus intermediate between those of chlorine and iodine.]]> 2017-04-26 15:53:28 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168417115 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168417531 Magnesium. Chemical element, metallic, symbol Mg, situated in group IIa in the periodic table, atomic number: 12, atomic weight: 24,312. Magnesium is silvery white and very light.]]> 2017-04-26 15:54:49 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168417531 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168418052 Iodine is important in medicine, in both radioactive and non-radioactive forms. Iodide and thyroxin, which contains iodine, are used inside the body. A solution containing potassium iodide (KI) and iodine in alcohol is used to disinfect external wounds. Elemental iodine is also used as a disinfectant.]]> 2017-04-26 15:56:07 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168418052 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168418864 Phosphorus is a chemical element with symbol P and atomic number 15. As an element, phosphorus exists in two major forms—white phosphorus and red phosphorus—but because it is highly reactive, phosphorus is never found as a free element on Earth. ]]> 2017-04-26 15:58:19 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168418864 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168419664 Boron is a chemical element with symbol B and atomic number 5. Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in the Solar system and in the Earth's crust]]> 2017-04-26 16:00:36 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168419664 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168420107 Argon is a chemical element with symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. Argon is the third-most abundant gas in the Earth's atmosphere, at 0.934%.]]> 2017-04-26 16:02:00 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168420107 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168420667 Arsenic is a chemical element with symbol As and atomic number 33. Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. Arsenic is a metalloid.]]> 2017-04-26 16:03:38 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168420667 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168421335 Platinum is a chemical element with symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, gray-white transition metal. Its name is derived from the Spanish term platina, translated into "little silver".]]> 2017-04-26 16:05:36 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168421335 3009621 https://padlet.com/3009621/z41fxqxv2pfl/wish/168421702 Cobalt is a chemical element with symbol Co and atomic number 27. Like nickel, cobalt is found in the Earth's crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron.]]> 2017-04-26 16:06:48 UTC https://padlet.com/3009621/z41fxqxv2pfl/wish/168421702