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It loses 2 electrons to obtain the argon configuration of 8 valence electrons.

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โˆ™ 2016-11-01 11:16:14
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โˆ™ 2016-11-01 10:18:18

Six electrons

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โˆ™ 2016-11-01 13:46:46

Lose 2.

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Q: How many valence electrons must calcium lose or gain to have 8 valence electrons?
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Related questions

Will the valence electrons of calcium give or take away electrons?

Calcium atom will generally lose two electrons to form Ca2+ ions. Calcium will not accept (gain) electrons.


Does calcium gain or lose 2 electrons to become stable?

Calcium loses its two valence electrons to become Ca 2+ ion.


What is the number of electrons a calcium atom must gain or lose to have 8 valence electrons?

two electron should be lost


How many valence electrons must sulfur gain or lose to get 8 valence electrons?

It must gain two electrons.


Number of valence electrons calcium lose?

The calcium atom (Ca) loses two valence electrons to form a calcium ion (Ca2+).


How many valence electrons does calcium lose?

Calcium loses 2 valence electron to become ionized.


How many electrons does beryllium gain or lose?

Beryllium can lose its two valence electrons.


Does group 13 elements lose or gain valence electrons?

It is going to lose electrons


Which of the following statements are true about whether atoms tend to gain or lose electrons?

Atoms with eight valence electrons usually do not gain or lose electrons. Atoms with one, two, or three valence electrons will lose electrons.


How many electrons does phosphrous have to gain or loose to have 8 valence?

P has 5 valence electrons so it can gain 3 electrons or lose 5 electrons to have a full valence shell.


How many electrons must phosphorus p gain or lose to have 8 valence electrons?

Phosphorus wants to gain three electrons to have 8 valence electrons.


How many valence electrons must bromine gain or lose to get 8 valence electrons?

Bromine must gain one electron


Does lanthanum Gain or lose electrons during bonding?

This is a metal so it will lose its valence electrons.


How many electrons will calcium gain or lose when forming an ion?

it will lose 2 electrons


What does the octet rule indicate?

atoms lose, gain, or share valence electrons to have 8 valence electrons.


What group of elements does not lose or gain valence electrons?

As a general rule, the noble gases do not lose or gain valence electrons because in most reactions they are considered inert.


How many electrons would calcium have to lose or gain to have to have 8 valence electrons?

It needs to lose to in order to have the same number of outer electrons as Argon. The Noble gas configuration of [Ar]4s2 confirms this.


How many electrons does calcium gain or lose?

2


How many electrons do calcium gain or lose?

Two.


Will an atom with six valence electrons lose or gain one or two electrons?

This atom gain two electrons.


Does the element calcium gain or lose electrons?

Ca loses electrons.


Would you expect calcium to gain or lose electrons in a chemical reactions?

Like all metals calcium will lose electrons.


How many valence electrons in calcium ion?

8 valence electrons. It originally has 20 electrons (inclusion of 2 valence electrons). the ion form of calcium will lose the two electrons, thus losing the outermost valence shell. the next shell will contain the full 8 valence electrons.


How many valence electrons will barium gain or lose to fill its outer shell?

It will lose 2 electrons.


What number of electrons must sulfur gain or lose to have 8 valence electrons?

Sulfur must gain two electrons.