MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryPeriodic PropertiesModern Periodic Table

The element whose electronic configuration is 1s2, 2s2, 2p6, 3s2 is

A.metal✓ Correct

B.metalloid

C.inert gas

D.non – metal

Explanation

The given electronic configuration is- 2 2 6 2 1 2 2 3 s s p s The atomic number becomes 12 and Magnesium will be the required element that is a metal. Thus, the correct answer is (a)

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