The history of calcium by Shubhril Tripathi https://padlet.com/Shubhril/nwl1wet7ci3g3s4o en-us 2020-11-03 07:27:36 UTC 2025-11-05 20:23:30 UTC hello@padlet.com When, Where and by whom? Shubhril https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891177610 Calcium was found in the 19th century at 1808 in England by sir Humphry Davy.]]> 2020-11-04 18:14:52 UTC https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891177610 How? Shubhril https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891213339 Calcium’s discovery was experimental. When Humphry Davy electrolysed ( treat something with electrolysis which is a technique that uses direct electric current a technique to do planned chemical reactions) of mixture of lime and mercury  oxide ]]> 2020-11-04 18:22:29 UTC https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891213339 Name Shubhril https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891230677 Calcium was named after the Latin term “calx” meaning lime by Humphry Davy.]]> 2020-11-04 18:26:03 UTC https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891230677 Humphry Davy Shubhril https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891289179 Humphry Davy was a Cornish chemist and inventor  who is best remembered for discovering a series of elements.]]> 2020-11-04 18:38:23 UTC https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891289179 About Calcium Shubhril https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891310264 Calcium is a silvery white, soft metal that loses shine rapidly when exposed to air and reacts with water by forcefully bubbling up after a second or so producing hydrogen and a cloudy white precipitate of calcium hydroxide.]]> 2020-11-04 18:42:50 UTC https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891310264 Other scientists involved in research of calcium Shubhril https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891332293 Magnus Pontin and Jöns Jacob Berzelius produced a calcium amalgam ( a mixture ) after performing electrolysis ( a technique that uses direct electric current a technique to do planned chemical reactions) on a mixture of lime and mercury oxide ]]> 2020-11-04 18:47:26 UTC https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891332293 Use Shubhril https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891388336 It is used as a reducing agent (an element or compound that loses an electron to an electron causing to get oxidised and reducing oxidising agents ( agents that oxidise other substances ) and also as an alloying agent ( Melting of two metals to form an alloy ) aluminium, beryllium, copper, lead and magnesium alloys.aluminium, beryllium, copper, lead and magnesium alloys.]]> 2020-11-04 18:59:15 UTC https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891388336 Compounds Shubhril https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891417495 Calcium Sulphate ( CaSO4, used to make dry wall and plaster of Paris ), 
Calcium nitrate (Ca(NO3)2), a fertiliser and calcium phosphate (Ca3(PO4)2, the main material found in teeth are some common compounds of calcium
]]> 2020-11-04 19:05:38 UTC https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891417495 BY SHUBHRIL Shubhril https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891449970 2020-11-04 19:12:36 UTC https://padlet.com/Shubhril/nwl1wet7ci3g3s4o/wish/891449970