https://padlet.com/301396/slu88eomsy7k Made with the strength to succeed en-us 2017-04-25 19:11:00 UTC 2026-01-01 02:41:07 UTC hello@padlet.com 301396 https://padlet.com/301396/slu88eomsy7k/wish/168216500 Hydrogen is present` in all organic compounds]]> 2017-04-25 19:19:18 UTC https://padlet.com/301396/slu88eomsy7k/wish/168216500 301396 https://padlet.com/301396/slu88eomsy7k/wish/168220812 It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772. ]]> 2017-04-25 19:37:15 UTC https://padlet.com/301396/slu88eomsy7k/wish/168220812 301396 https://padlet.com/301396/slu88eomsy7k/wish/168481061 Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air.]]> 2017-04-26 19:12:39 UTC https://padlet.com/301396/slu88eomsy7k/wish/168481061 301396 https://padlet.com/301396/slu88eomsy7k/wish/168483328  A freshly exposed surface of pure copper has a reddish-orange color]]> 2017-04-26 19:21:38 UTC https://padlet.com/301396/slu88eomsy7k/wish/168483328 301396 https://padlet.com/301396/slu88eomsy7k/wish/168484204 It is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions]]> 2017-04-26 19:24:47 UTC https://padlet.com/301396/slu88eomsy7k/wish/168484204 301396 https://padlet.com/301396/slu88eomsy7k/wish/168485478 It can supply the body with calcium if the regular diet does not provide enough. ]]> 2017-04-26 19:30:05 UTC https://padlet.com/301396/slu88eomsy7k/wish/168485478 301396 https://padlet.com/301396/slu88eomsy7k/wish/168486125  It was first isolated from potash, the ashes of plants, from which its name derives.]]> 2017-04-26 19:32:29 UTC https://padlet.com/301396/slu88eomsy7k/wish/168486125 301396 https://padlet.com/301396/slu88eomsy7k/wish/168486931  In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal]]> 2017-04-26 19:35:48 UTC https://padlet.com/301396/slu88eomsy7k/wish/168486931 301396 https://padlet.com/301396/slu88eomsy7k/wish/168487852 It is commonly known as quicksilver and was formerly named hydrargyrum.]]> 2017-04-26 19:40:21 UTC https://padlet.com/301396/slu88eomsy7k/wish/168487852 301396 https://padlet.com/301396/slu88eomsy7k/wish/168490331  It is a metal in the first transition series.]]> 2017-04-26 19:52:57 UTC https://padlet.com/301396/slu88eomsy7k/wish/168490331 301396 https://padlet.com/301396/slu88eomsy7k/wish/168490818 It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized]]> 2017-04-26 19:55:40 UTC https://padlet.com/301396/slu88eomsy7k/wish/168490818 301396 https://padlet.com/301396/slu88eomsy7k/wish/168491479 . It is a silvery-white metal in the actinide series of the periodic table.]]> 2017-04-26 19:58:58 UTC https://padlet.com/301396/slu88eomsy7k/wish/168491479 301396 https://padlet.com/301396/slu88eomsy7k/wish/168492037  When freshly cut, it is bluish-white; it tarnishes to a dull gray upon exposure to air. It is a soft, malleable, and heavy metal with a density exceeding that of most common materials]]> 2017-04-26 20:01:58 UTC https://padlet.com/301396/slu88eomsy7k/wish/168492037 301396 https://padlet.com/301396/slu88eomsy7k/wish/168492471  It is a lustrous transition metal with a silver color, low density, and high strength.]]> 2017-04-26 20:04:10 UTC https://padlet.com/301396/slu88eomsy7k/wish/168492471 301396 https://padlet.com/301396/slu88eomsy7k/wish/168493065 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 20:07:37 UTC https://padlet.com/301396/slu88eomsy7k/wish/168493065 301396 https://padlet.com/301396/slu88eomsy7k/wish/168493483 It is the first element in group 12 of the periodic table.]]> 2017-04-26 20:09:55 UTC https://padlet.com/301396/slu88eomsy7k/wish/168493483 301396 https://padlet.com/301396/slu88eomsy7k/wish/168493787 A radioactive actinide metal, neptunium is the first transuranic element.]]> 2017-04-26 20:11:33 UTC https://padlet.com/301396/slu88eomsy7k/wish/168493787 301396 https://padlet.com/301396/slu88eomsy7k/wish/168494285  It is a member of the actinide and transuranium element series]]> 2017-04-26 20:14:12 UTC https://padlet.com/301396/slu88eomsy7k/wish/168494285 301396 https://padlet.com/301396/slu88eomsy7k/wish/168494857  It is a nonmetal with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium. ]]> 2017-04-26 20:16:42 UTC https://padlet.com/301396/slu88eomsy7k/wish/168494857 301396 https://padlet.com/301396/slu88eomsy7k/wish/168495211  It is not found as a free element in nature; it is often found in minerals in combination with iron.]]> 2017-04-26 20:18:43 UTC https://padlet.com/301396/slu88eomsy7k/wish/168495211