Chemistry Classification of Elements and Periodicity Extended or Long form of Periodic Table Single Correct MCQ
Published on: August 12, 2026

The electronic configuration of few elements is given below. Mark the statement which isj not correct about these elements.

(i) (ii)

(iii) (iv)

A
(i) is an alkali metal.
B
(iii) is a noble metal.
C
(i) and (ii) form ionic compounds
D
(iv) has high ionization enthalpy.

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The correct answer is:
B

(iii) is noble gas.

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