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Write the atomic number of the element with the following electronic configuration 1s2 2s2 2p6 3s2 3p6 3d7 4s2
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Write the atomic number of the element with the following electronic configuration

1s2 2s2 2p6 3s2 3p6 3d7 4s2

User GavinWoods
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1 Answer

8 votes

Answer:

Atomic Number: 27 (Co, Cobalt)

Step-by-step explanation:

4s2 is before 3d7*

User Henrywallace
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