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Calcium

Discussion board (posts 401-420)

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Jeremy - 1/15/2008 5:10:49 AM

funny you mention this project. I'm doing the same project, and same element. www.chemicool.com and www.popsci.com/popsci/periodictable/ are good sites

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E-mail address Suzanne Shriek - 1/15/2008 12:13:50 AM

  Maurine Laklie - 1/8/2008 2:41:46 PM
  how much of calcium is in the earths crust?
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Depends on what you mean. There is 3.6 percent by mass in the earth's crust.

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---- - 1/13/2008 3:19:47 PM

What is the actual cost for calcium and where did you get it? I need bibliography...=)

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Maurine Laklie - 1/8/2008 3:00:50 PM

what can calcium react with?

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Maurine Laklie - 1/8/2008 2:58:28 PM

How does calcium build strong bones?

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Crystal Parker - 1/8/2008 2:56:00 PM

  Liza Simmons - 1/8/2008 2:54:35 PM
  is calcium in fireworks?

yes it is actually, but it is only put in some fireworks, only for color.

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Liza Simmons - 1/8/2008 2:54:35 PM

is calcium in fireworks?

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Liza Simmons - 1/8/2008 2:51:37 PM

is calcium radioactive?

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Crystal Parker - 1/8/2008 2:50:21 PM

  Liza Simmons - 1/8/2008 2:49:51 PM
  when was calicum invented?

it was invented by sir humphry davy in 1808

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Liza Simmons - 1/8/2008 2:49:51 PM

when was calicum invented?

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Maurine Laklie - 1/8/2008 2:47:13 PM

what are some websites i can research on?

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Maurine Laklie - 1/8/2008 2:45:46 PM

  Crystal parker - 1/8/2008 2:42:30 PM
  who is the founder of Calcium?

sir humphry davy

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Crystal parker - 1/8/2008 2:43:47 PM

  Maurine Laklie - 1/8/2008 2:41:46 PM
  how much of calcium is in the earths crust?
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it is 4.2% =]

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Maurine Laklie - 1/8/2008 2:43:17 PM

so what do you guys know about calcium?

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Crystal parker - 1/8/2008 2:42:30 PM

who is the founder of Calcium?

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Maurine Laklie - 1/8/2008 2:42:19 PM

  Crystal parker - 1/8/2008 2:37:01 PM
  how many valence electrons are in Calcium?

i think theres 2 valance electrons

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Maurine Laklie - 1/8/2008 2:41:46 PM

how much of calcium is in the earths crust?
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Crystal parker - 1/8/2008 2:37:01 PM

how many valence electrons are in Calcium?

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E-mail address Kyle Zuniga - 1/5/2008 7:29:49 AM

also does anyone know who named it and why?

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E-mail address Kyle Zuniga - 1/5/2008 6:07:23 AM

what is the electron affinity, ion notation with charge, and ionization energy of calcium cause i looked everywhere and i can't find it. and i got a project on it i just missing those 3 parts so can someone help me please

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