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The electron configuration of selenium for a 2- ion is [Kr]4s2.3d10.4p6.

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βˆ™ 6y ago
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βˆ™ 4mo ago

The electron configuration of selenium (Se) is [Ar] 3d10 4s2 4p4. To form a 2- ion, two electrons will be removed from the outermost shell, which is the 4p subshell. Therefore, the electron configuration of Se2- is [Ar] 3d10 4s2.

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Q: What is the electron configuration of selenium for a 2- ion?
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What is the electron configuration of selenium 2 ion?

Se2- 1s22s22p63s23p64s23d104p6


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Selenium typically loses 2 electrons to achieve a stable electron configuration. This results in the formation of a 2+ ion for selenium.


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Selenium typically forms an ion with a charge of -2 when it gains two electrons to achieve a stable electron configuration. This forms the selenide ion (Se2-).


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