Question

What is the common feature of the electronic configuration of the elements at the end of period 2 and period 3? (Neon and Argon)​

Answer 1

✫$\LARGE{\sf{\underline{\underline{\ Answer}}}}$✫

Their octet is complete.

Answer 2

Answer:

the last elements of period 2 and period 3 are neon and argon. there are 8 valence electron in this element and hence has fully filled electronic configuration and is a stable element.

Explanation:

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