Element Project

By: Rebecca DanielsChemistry-6th period

Atomic Number: 20

Atomic Mass: 40.078

20 p+ 20 n 20 e-

EC: 1s2, 2s2, 2p6, 3s2, 3p6, 4s2 Abbreviated EC: [Ar] 4s2.

Common Naturally Occurring Isotopes:Common Naturally occurring isotopes in Calcium:

40Ca- Mass= 40.078 *Abundance=96.941= 38.85201398

41 Ca- Mass=39.96259*Abundance=0= 0

42Ca- Mass=41.958618*Abundance=0.647= .027147225846

43Ca- Mass=42.95867*Abundance=0.135=.00579942045

44Ca- Mass= 43.95548 *Abundance=2.086=0.9169113128

45Ca- Mass=44.95618*Abundance=0=0

46Ca- Mass=45.95369*Abundance=0.004=.0018381476

47Ca- Mass=46.95454*Abundance=0=0

48Ca- Mass=47.95235*Abundance=0.187=.0896708945

171.553875801196 amu

Dairy products are usually the things that hold calcium, and lack of calcium can affect your teeth and bones in a major way. Vitamin D is needed to absorb calcium. Coral calcium ,calcium carbonate, chloride,

citrate, carbide, hydroxide all have calcium in it.

Sir Humphrey

Davy

1808He dissolved lime into a

mercuric oxide mixture and then

passed an electric current

through it.

England