Calcium Ca

Sarah German

All about me!

Hello and i'm the element calcium! My symbol is Ca, I have an atomic number of 20, my mass is about 40, i'm in group 2, period 4, i'm an alkali earth metal, solid, and happily a metal! Some of the jobs I do for the human race is provide structure for their bones, i'm used in metal extraction, and I can be found in the milk they drink!