abbie k - 10/19/2008 10:04:12 PM
here is a long list of true info for anyone who needs help with a project about calcium
Symbol Ca Atomic number 40.078 atomic mass 20 # of protons 20 # of neutrons 20 # of electrons 2 melting point 842c boiling point 1484c state of matter solid cost .11 for 1 gram 11.oo for 100 grams and 0.55 for 5 grams classification metal belongs to the Alkaline earth metals family orgin name is calcis (lime) latin Discoverd by Sir Humphrey Davy (England) in 1808 I hope this helps someone who really needs it. All these facts are true. I used them for a project and made a A+ and im in 8th grade. Thanks sooo much!
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