Question

An element has an atomic number of 18. Its valence shell is-

Answer 1

QUESTION :

An element has an atomic number of 18. Its valence shell is ?

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ANSWER :

Atomic number - 18

Element - Argon (Ar)

Electronic configuration - 2,8,8

Valency - 0

Valence Electrons - 8

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Important Points :

• Valency - It is the ability of an atom to gain or lose electron.
• Valence Electrons - Number of electron in the outer shell.