Question

what are shells ? (chemistry)​

Answer 1

Answer:

A seashell or sea shell, also known simply as a shell, is a hard, protective outer layer usually created by an animal that lives in the sea. The shell is part of the body of the animal. Empty seashells are often found washed up on beaches by beachcombers. The shells are empty because the animal has died and the soft parts have been eaten by another animal or have decomposed.

Answer 2

$\sf\underline{Shells:}$

The path of electron around the nucleus is known as shell. It is also called an orbit.

→ Shells are represented by letters K, L, M, N,....

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