MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryPeriodic PropertiesPrevious Year Questions

Increase in atomic size down the group is due to (JCECE 2008)

A.increase in number of electrons✓ Correct

B.increase in number of protons and neutrons

C.increase in number of protons

D.increase in number of protons, neutrons and

Explanation

In general, the trend of atomic size increases down the group due to the addition of electrons in new shells whereas it decreases from left to right due to the addition of electrons in the same shell. Therefore, the correct option is (a).

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