Question

Assertion(A):inert elements show zero valency..
Reason(R): atoms of inert elements has fully filled outermost orbit.

(i) Assertion and reason both are correct and reason is correct explanation
of assertion.
(ii)Assertion and reason both are wrong statements.
(iii)Assertion is correct but reason is wrong statement.
(iv)Assertion is wrong but reason is correct statement.
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Answer 1

Answer:

the assertion and reason both are correct and the reason has correct explanation

Answer 2

Assertion and reason both are correct and the reason is the correct explanation of assertion ( option- i).

• Inert elements are the elements of group 18 in the modern periodic table.
• These are said to be inert because these elements do not react with any other elements.
• These elements have a fully-filled outermost valence shell or orbit, hence inert in nature.
• Their valency is zero as their valence shells are completely filled so these elements do not lose or gain electrons.
• Group 18 elements are Helium, Neon, Argon, Krypton, Radon, and Oganesson.