What is the electron configuration for oxygen with a 2- charge (o2-)?

1 answer:

3 0

Oxygen:
Atomic no. = 8(from periodic table)
⇒1s^2 2s^2 2p^4
But it is O^2-
There are 2 more electrons
=>1s^2 2s^2 2p^6
Voila!

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