The increase in boiling points of noble gases from He to Xe is due to the

Question

The increase in boiling points of noble gases from He to Xe is due to the

The increase in boiling points of noble gases from He to Xe is due to the
A. decreases in ionization energy
B. increases in polarizability
C. increase in electron affinity
D. increase in atomic volume.

Monjur Alahi

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2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Correct Answer - B
As we go down the group from He to Xe, the size of atom increases, due to which ease of polarization of noble gas atom (or molecule) increases. Xe is 20 times more polarizable than He. The increasing polarizability has its effect on strengthening intermolecular interactions (dispersion forces), which in-turn increases the boiling and melting points. Increasing intermolecular attractions also make their liquefaction easier.