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Ca needs to lose 2 electrons to become Ca+2

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Q: How many electrons must be gained or lost for calcium to attain a noble gas electron configuration?
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Related questions

How many electrons must be gained or lost for calcium to attain a noble-gas electron configuration?

two electrons lost


How many valence electron does Ca lose or gain to attain noble-gas electron configuration?

Calcium loses two electrons to obtain a noble-gas electron configuration.


How many electrons does sulfur gain to attain a noble gas configuration?

Gain two electrons to have the electron configuration as Argon


Metals tend to gain electrons to attain the electron configuration of noble gases?

true, just not for Boron witch tries to gain 6 electrons for a stable arrangement


How many electrons does a carbon atom need to gain in order to attain a noble gas electron configuration?

4


How does an element in group 2 attain a stable electron configuration?

It loses 2 electrons and becomes a +2 ion.


How many electrons does a bromine atom need to gain in order to attain a noble gas electron configuration?

2


How many electrons does nitrogen give up to achieve noble gas electron configuration?

nitrogen should give 5 electrons (or better gain 3 electrons) to attain noble gas configuration.


When an aluminum atom reacts so as to attain a noble gas electron confuration?

aluminium should lose three electrons to attain noble gas configuration


How is the electron configuration of Sulfur consistent with the formation of Na2S and SF6?

Sulfur has six valence electrons and can therefore attain an inert gas configuration in two different ways: by accepting two electrons to attain the electron configuration of argon or donating or sharing six electrons to attain the electron configuration of neon. In combination with the much less electronegative element sodium, sulfur accepts one electron from each of two sodium atoms to form the ionic compound Na2S, but in combination with the more electronegative element fluorine, sulfur shares its six valence electrons with each of six fluorine atoms to form six polar covalent bonds with fluorine.


How many electrons must Kr lose to attain a noble gas electron configuration?

Krypton is a noble gas and need not lose electrons. It is already stable.


How many electrons does silicon need to gain a noble electron gas configuration?

An atom of silicon needs to gain 4 electrons in its 3p sublevel to attain the noble gas electron configuration of argon, the noble gas in period 3 of the periodic table.