Periodic Table

Calcium

Discussion board (posts 481-500)

>> Back to key information about the element

breanna - 4/14/2009 3:53:58 AM

what is a real picture of calcium looks like?!?

emily - 4/13/2009 4:45:56 PM

wat is a need for calcium for humans besides healthy teeth and bones? if there is anything! i need help! im a 5th grade student and my teacher is so mean that she gave us the 7th graders project this year! its due tomorrow... so please help me ASAP! thx :)

emily - 4/13/2009 4:37:32 PM

	Lorena - 4/7/2009 12:30:09 AM
	How much does calcium cost for a gram?

idk wat the cost for one gram is... but i know that its $11 for 100 grams.
hope that helps u! :)

Lorena - 4/7/2009 12:30:09 AM

How much does calcium cost for a gram?

anonymous - 3/11/2009 8:26:13 PM

how much does one gram of calcium cost

Toriorio - 2/22/2009 6:07:49 PM

	mika - 1/15/2006 3:22:06 PM
	hello , what is the classification to the catagory calcuim ? Is it nonmetal,metal, or Metalloid?

metal. its part of the Alkaline Earth Metal family

ari - 1/15/2009 1:36:03 AM

	jessica - 10/30/2005 6:35:02 PM
	go to www. elements.com

in 1808 by sir humphrey davy

kara - 1/12/2009 3:07:50 PM

what is the normal phase of calcium?

Im doing a project and need to know.
please and thanks (:

anonymous - 12/9/2008 2:09:50 AM

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!

good, but one mistake.
the atomic number is not 40, it's 20, and it's mass is 40.078. you mixed them up.

anonymous - 12/8/2008 3:31:15 AM

	tina - 9/17/2008 6:34:01 PM
	And what is the mass of calcium? Please and thank you.

the mass for calcium is 40.078

Sarah - 12/5/2008 7:54:32 PM

plz help I need a list of everything calcium is in for a project.

Sarah - 12/5/2008 7:50:14 PM

	science freak 101 - 10/19/2008 10:06:45 PM
	you are sooo right! every answer is sooo right. you must be very smart! i love science.

Correction: Sir Humphry Davy isolated the pure form in 1808

Sarah - 12/5/2008 7:47:10 PM

	Josh Roberts - 11/16/2008 9:28:19 PM
	Who/ which group of people discovered calciu? Where was it discovered? When was it discovered?

The Romans knew about its existence, but Sir Humphry Davy isolated the pure form in 1808...i don't know where he did it

Josh Roberts - 11/16/2008 9:28:19 PM

Who/ which group of people discovered calciu? Where was it discovered? When was it discovered?

anonymous - 11/4/2008 4:45:21 AM

it is stable with twenty

bob - 11/4/2008 1:22:50 AM

to become stable, calcium must lose or gain how many electrons

tiara - 10/30/2008 12:19:29 AM

what is the normal phase and cost of the element calcium

ruthvika - 10/23/2008 1:28:09 AM

could you please tell me what is the cost of calcium per 100g

abbie - 10/19/2008 10:15:22 PM

hi yall 1 last detail about calcium is that it is flameable, color is silver,it is used in alloys and for cement for construction.

abbie - 10/19/2008 10:11:16 PM

Calcium helps built strong bones and teeth! just to let you know if you dont get enough calcium you can get weak bones when you grow older!

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