30 most inportant elements by Arnold Mascorro https://padlet.com/301295/9ae3o198c1qz Made with no regrets, whatsoever en-us 2017-04-25 19:23:55 UTC 2017-04-26 19:43:05 UTC hello@padlet.com Being the first element on the periodic table, Hydrogen is the lightest of all chemical elements. 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168480522
]]> 2017-04-26 19:10:41 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168480522 Lithium as an element. Lithium is a chemical element among the alkali metals, and is the least dense solid element. 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168480875
]]> 2017-04-26 19:12:02 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168480875 It is a soft metal that does not occur naturally on Earth as a free element. Interesting Sodium Facts: 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168481264
]]> 2017-04-26 19:13:29 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168481264 Potassium is the seventh most abundant element on Earth. It was first isolated by Sir Humphry Davy in 1807 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168481448
]]> 2017-04-26 19:14:17 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168481448 Image result for rb element factsCharacteristics: Rubidium is a soft, silvery-white metallic element. 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168481660
]]> 2017-04-26 19:15:02 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168481660 Caesium (Cs) has an atomic number of fifty-five and fifty-five protons in the nucleus. A silvery-gold, soft metal, 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168482996
]]> 2017-04-26 19:20:24 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168482996 Characteristics: Francium is a heavy, unstable, radioactive metal with a maximum half-life of only 22 minutes. It has a low melting point (27 oC, 81 oF) 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168483830
]]> 2017-04-26 19:23:29 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168483830 A substance made up of one kind of atom is an element. Gold is an element because it only contains gold atoms. 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168484150
]]> 2017-04-26 19:24:34 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168484150 Magnesium (Mg) is an alkaline earth metal with an atomic number of twelve and twelve protons in the nucleus. Humphry Davy isolated 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168484397
]]> 2017-04-26 19:25:36 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168484397 Chromium Facts. Chromium (Cr) is chemical element in the transition metals group with an atomic number 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168484895
]]> 2017-04-26 19:27:37 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168484895 Barium (Ba) has an atomic number of fifty-six. It is a silvery-white metallic element and is a member of the alkaline-earth metals. 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168485084
]]> 2017-04-26 19:28:26 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168485084 Interesting Radium Facts: Radium was discovered by Pierre and Marie Curie in 1898. They extracted the element from a sample of the mineral uraninite. 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168485347
]]> 2017-04-26 19:29:32 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168485347 Scandium (Sc) has an atomic number of twenty-one. This member of the transition elements group is a silver-white that has been historically categorized 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168485673
]]> 2017-04-26 19:30:51 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168485673 Interesting Titanium Facts: Titanium was discovered in 1791 by William Gregor, but was named by Martin Heinrich Klaproth. 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168486084
]]> 2017-04-26 19:32:21 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168486084 Klaproth was unable to isolate the metal itself. That was achieved in 1824 by the Swedish chemist Jöns Jacob Berzelius but there was little use for it or its chemical 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168486292
]]> 2017-04-26 19:33:02 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168486292 hafnium (symbol Hf) Silvery metallic element, one of the transition elements. Dutch physicist Dirk Coster and Hungarian chemist Georg von Hevesy discovered hafnium in 1923. 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168486501
]]> 2017-04-26 19:33:51 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168486501 It was named after Ernest Rutherford, the chemist and physicist who became known as the father of nuclear physics. 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168486668
]]> 2017-04-26 19:34:38 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168486668 Word origin: The word vanadium comes from the Scandinavian goddess Vanadis.Discovery: Vanadium 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168487106
]]> 2017-04-26 19:36:36 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168487106 Niobium (Nb) has an atomic number of forty-one. This shiny white member of the metallic elements was originally called columbium, until its current name was adopted in 1950. 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168487355
]]> 2017-04-26 19:37:48 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168487355 It is a blue-gray, very hard metal with the fourth highest melting point of any metallic element. Interesting Tantalum by Charles Hatchett. 301295 https://padlet.com/301295/9ae3o198c1qz/wish/168487499
]]> 2017-04-26 19:38:36 UTC https://padlet.com/301295/9ae3o198c1qz/wish/168487499