https://padlet.com/3012421/kwf0jz22mkg5 en-us 2017-04-26 17:38:46 UTC 2026-03-16 17:44:55 UTC hello@padlet.com 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168453561 atomic number: 13
Aluminium may be involved in the action of enzymes such a succinic dehydrogenase and δ-aminolevulinate dehydrase.]]> 2017-04-26 17:39:55 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168453561 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168454018 atomic number: 29 
Copper is essential for all life, but only in small quantities. It is the key component of redox enzymes and of haemocyanin.]]> 2017-04-26 17:41:11 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168454018 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168454519 atomic number: 20 
Calcium is essential for all life. It forms part of cell walls and bones. It is important for blood clotting.]]> 2017-04-26 17:42:57 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168454519 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168455231 atomic number: 6
Carbon is key to life and by definition is present in all organic compounds]]> 2017-04-26 17:45:08 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168455231 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168455753 atomic number: 79
Gold is not a necessary trace element for living things and neither are any of the other third row d-block elements.]]> 2017-04-26 17:46:43 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168455753 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168456375 atomic number: 2
Helium is the second most abundant element in the universe.]]> 2017-04-26 17:48:38 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168456375 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168456954 atomic number: 26
It is an iron atom in haemoglobin that is responsible for carrying oxygen around the blood stream.

]]> 2017-04-26 17:50:38 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168456954 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168457877 atomic number: 82
Lead has no biological role. Lead affects the gut, central nervous system and causes anaemia.]]> 2017-04-26 17:53:47 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168457877 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168512741 atomic number: 24
Chromium is an essential trace element and has a role in glucose metabolism.]]> 2017-04-26 23:02:39 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168512741 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168512828 atomic number: 1 
Hydrogen is the lightest element. It is by far the most abundant element in the universe and makes up about about 90% of the universe by weight.]]> 2017-04-26 23:04:06 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168512828 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168512945 atomic number: 36 
Krypton was discovered in 1898 by Sir William Ramsay. ]]> 2017-04-26 23:06:25 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168512945 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168513155 atomic number: 71 
Lutetium has no biological role but is said to stimulate the metabolism.]]> 2017-04-26 23:09:39 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168513155 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168513367 atomic number: 12
Magnesium is an important element for plants and animals]]> 2017-04-26 23:13:21 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168513367 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168513461 atomic number: 80 
Mercury has no biological role but is widespread in the biosphere and in food chains, including ours.]]> 2017-04-26 23:14:58 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168513461 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168513571 atomic number: 93 
Neptunium was the first synthetic transuranium element of the actinide series.]]> 2017-04-26 23:17:06 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168513571 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168513682 atomic number: 10 
Neon was discovered by Sir William Ramsay and Morris Travers in 1898.]]> 2017-04-26 23:19:02 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168513682 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168513781 atomic number: 28 
Nickel is found as a constituent in most meteorites and often serves as one of the criteria for distinguishing a meteorite from other minerals.]]> 2017-04-26 23:20:39 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168513781 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168513884 atomic number: 7
Nitrogen is a key component of biological molecules such as proteins]]> 2017-04-26 23:22:09 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168513884 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168514037 atomic number: 8
Oxygen atoms are present in water (H₂O) and water is essential to all life.]]> 2017-04-26 23:24:10 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168514037 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168514125 atomic number: 78
Platinum is found as the free element, usually mixed with other metals including gold, nickel, copper, palladium, ruthenium, rhodium, iridium, and osmium in Columbia]]> 2017-04-26 23:25:39 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168514125 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168514215 atomic number: 94
Plutonium is found in trace quantities in uranium ores.]]> 2017-04-26 23:27:10 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168514215 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168514304 atomic number: 19 
Potassium salts are essential for both animals and plants.]]> 2017-04-26 23:28:40 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168514304 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168514493 atomic number: 14
Elemental silicon transmits more than 95% of all wavelengths of infrared and and has been used in lasers to produce coherent light at 456 nm.]]> 2017-04-26 23:32:03 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168514493 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168514588 atomic number: 47
Silver is found sometimes as the free metal as well as in ores such as argentite.]]> 2017-04-26 23:33:45 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168514588 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168514603 atomic number: 11
Sodium is a vital element. The human diet must contain a sensible amount of sodium]]> 2017-04-26 23:33:53 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168514603 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168514853 atomic number: 16
Sulphur is essential to life. It is a minor constituent of fats, body fluids, and skeletal minerals. ]]> 2017-04-26 23:37:40 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168514853 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168515033 atomic number: 30 
Zinc is essential in the diets of plants and animals.]]> 2017-04-26 23:39:37 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168515033 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168515049 atomic number: 50
Tin might be a necessary element in very, very, small quantities in rats.]]> 2017-04-26 23:39:52 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168515049 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168515070 atomic number: 18 
Sulphur is essential to life. It is a minor constituent of fats, body fluids, and skeletal minerals.

]]> 2017-04-26 23:40:08 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168515070 3012421 https://padlet.com/3012421/kwf0jz22mkg5/wish/168515088 atomic number: 22
Titanium metal is not found as the free element.]]> 2017-04-26 23:40:21 UTC https://padlet.com/3012421/kwf0jz22mkg5/wish/168515088