Calcium is an element, it's symbol is Ca, and like everything else except for hydrogen it was formed by nuclear fusion in the heart of a star which has since blown up.
In 1809 Joseph Louis Gay-Lussac and Louis-Jacques Thénard tried to decompose dephlogisticated muratic acid air by reacting it with charcoal to release the free element muriaticum (and carbon dioxide). They did not succeed and published a report in which they considered the possibility that dephlogisticated muratic acid air is an element, but were not convinced. In 1810, Sir Humphrey Davy tried the same experiment again, and concluded that it was an element, and not a compound. He named this new element as chlorine, from the Greek word χλωρος (chlōros), meaning green-yellow
The symbol for calcium is Ca, from the first two letters of the English name of the element. (By convention, the first letter of an element symbol must be a capital letter, even though the name of the element is not necessarily capitalized.)
the origin of zinc is Mexico!
A property of that element. An unstable element. A radioactive element
The origin name for yttrium is ytterby.
German
Americium is an artificial element, prepared in laboratories.
The chemical element europium was named after the continent Europe.
Its origin is form Latin. The Latin word for silver is argentium
The origin of the element Barium is from the greek work "penis" meaning heavy
It is something that is colorless and is an element.
Meitnerium is an artificial chemical element.
Uranium decay chains
Salt is not an element. It is the compound Sodium Chloride NaCl. Origin: Old English sealt
Africa
the latin word for flint, Silex. :)