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Published on Nov 21, 2015

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PRESENTATION OUTLINE

Calcium

by: Jason Bolanos

calcium

  • Chemical Symbol: Ca
  • Average atomic mass: 40.078+0.004u
  • Atomic Number: 20
Photo by tommaync

Calcium

  • Calcium is a chemical element with a symbol Ca  and an atomic number is 20.
  • Origin of name: is  from the Latin word "calx" meaning "lime".
  • Calcium is founded on the Earth crusts
  • Is an alkaline earth metal.
Photo by tommaync

calcium

  • The number of valence electron: 2
  • calcium's position in the periodic table is 4th.
  • You can find calcium in rocks,seashells,chalk,and in bones.

calcium

  • We use calcium in are everyday life when we drink milk.
  • Milk has a lot of calcium in it that makes are bones stronger.
  • calcium was discovered in 1808 by Sir Humphrey Davy from England.
  • calcium is found in rocks, seashells, chalk, and in our bones.