Question

Describe and explain the pattern in the electronic structure of the first 18 elements?
no irrelevant answers please, or i will report you and block you.​

Answer 1

Answer:

You should see two patterns, or trends, in the energy levels of the valence electrons:

The valence shell electrons of elements in the same period of the Periodic Table occupy the same energy level: Period. ...

Down a Group of the Periodic Table from top to bottom, the energy of the valence electrons increases:

Explanation:

sry if is it not helpful for u...