What is the Noble Gas notation (Electron configuration) for the manganese atom?

1 Answer
anor277
May 4, 2018

Well what is #Z# for manganese....?

Explanation:

My Periodic Table tells me #Z=25#...and if there are 25 positive, nuclear charges, there are 25 electronic charges, 18 of which form an argon core...#1s^(2)2s^(2)2p^(6)3s^(2)3p^6#

And so we gets...#underbrace(1s^(2)2s^(2)2p^(6)3s^(2)3p^6)_"argon core"4s^(2)3d^(5)-=[Ar]4s^(2)3d^(5)#

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