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I believe it is 2, seeing it is a metal, and has 2 valence electrons. Correct me if I'm wrong, I don't have my Periodic Table with me (Calcium -> Ca?).

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17y ago

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If calcium is most happy with a charge of 2 how many electrons would it have?

The neutral atom of calcium has 20 electrons; the cation Ca2+ has 18 electrons.


How many electrons will a calcium atom Ca lose in order to get a noble gas configuration?

Calcium will lose two electrons to gain the noble gas configuration of Argon.


How many electrons does the calcium ion lose from an atom?

A calcium ion (Ca2+) loses two electrons from an atom to achieve a stable octet electron configuration. This results in a +2 charge on the calcium ion.


How many electrons in calcium?

There are 20 electrons in a calcium atom.


How many electrons are calcium?

Calcium has 20 electrons in the neutral atom.


How many electrons are in a molecule?

Calcium oxide has 20 electrons from the calcium atom, and 8 electrons from the oxygen atom, totaling 28 electrons.


How many atoms does calcium lose?

I am not sure what you mean by atoms, i think you mean electrons (part of an atom).Calcium is in Group 2 of the periodic table so this means that in order to become stable it will lose 2 electrons.


How many electrons do calcium has?

Calcium, as an element, has 20 electrons. But when becomes an ion, it loses two electrons, becoming Ca+2. Therefore, as an ion, calcium has only 18 electrons.18


How many electrons do the calcium?

Calcium is a metal element. There are 20 electrons in a single atom.


How many Electrons in atom of calcium?

20 electronsIt has 20 protons and 20 neutrons.20 electrons


How many electrons are in a calcium atom and in a calcium ion?

A calcium atom has 20 electrons, as it has 20 protons to maintain a neutral charge. A calcium ion, specifically Ca2+, has lost two electrons, so it has 18 electrons.


How many valence electrons are in calcium?

Calcium is a non metal element. There are 20 electrons in a single atom.