Which ion with a charge of -2 has an electron conﬁguration of $1s^2 2s^2 2p^6$ ?

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Which ion with a charge of -2 has an electron conﬁguration of $1s^2 2s^2 2p^6$ ?

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Answer 1 · 2015-11-14T19:54:49

If there are 10 electrons in total and a formal negative charge of $-2$ , there must be 8 positive charges in the nucleus.

Explanation:

Since $Z$ $=$ $8$ . the identity of this nucleus must be oxygen. Note that you will never sit a Chemistry or Physics exam without access to a Periodic Table. You must have this, and if you don't raise merry hell.

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Which ion with a charge of -2 has an electron conﬁguration of $1s^2 2s^2 2p^6$ ?

1 Answer

Explanation:

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Which ion with a charge of -2 has an electron conﬁguration of 1s^2 2s^2 2p^61s^2 2s^2 2p^6?

1 Answer

Explanation:

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Which ion with a charge of -2 has an electron conﬁguration of $1s^2 2s^2 2p^6$ ?