Question

write complete electronic configuration of first 18 elements
please answer quick ​

Answer 1

Explanation:

Electron shell configuuration of the first 18 elements. The electron shell configuration of the first 18 elements in the periodic table..........

Hydrogen has 1 electron in the 1s level , and to the right , in Group 18 ,has 2 electrons in the 1s level ,a completely filled shell , the duet rule.

Answer 2

Answer:

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