2007-04-03 03:58:31 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Medicine
It refers to the calcium ion's valency, having positive-charge of 2
2007-04-07 01:34:35 · answer #1 · answered by citizen insane 5 · 0⤊ 0⤋
That's the valence of calcium. It means that calcium ion carry a +2 positive charge
2007-04-05 03:26:33 · answer #2 · answered by . 1 · 0⤊ 0⤋
This means bivalent positive ion
The Ca (calcium) has lost 2 electrons
2007-04-03 11:03:07 · answer #3 · answered by maussy 7 · 2⤊ 0⤋
What you probably mean is Ca2+. This means that the calcium ion has given up two electrons, and since electrons possess a negative charge, then giving away two will conversely give it a positive charge of +2.
Hope that answers your question...
2007-04-03 12:28:52 · answer #4 · answered by Anonymous · 0⤊ 1⤋
it means that the valency of calcium is 2,or in other words it has lost 2 electrons from the valence shell
2007-04-03 11:14:57 · answer #5 · answered by neha c 1 · 0⤊ 0⤋
It means there are more protons present in the nucleus than there are electrons in the electron cloud, specifically, by 2
2007-04-03 11:26:49 · answer #6 · answered by SteveA8 6 · 0⤊ 0⤋
It's a divalent cation. High school and college chemistry turn out to be useful in medicine every now and again.
2007-04-03 18:49:56 · answer #7 · answered by Anonymous · 0⤊ 0⤋