What is the electron configuration of an element with atomic number 20?

asked Jun 26, 2018 78.2k views

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2 votes

[Ar]4s^2
hope it helps

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Answer:

What is the electron configuration of an element with atomic number 20? 1s2 2s2 2p6 3s2 3p6 4s2

Step-by-step explanation:

Markella answered Jul 2, 2018

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