Explain the trends in ionisation enthap, density, melting and boiling

1.	Explain the trends in ionisation enthap, density, melting and boiling point of gr 18 elements
Answer» The first ionization energy decreases down a group in the periodic table. Because the atoms increases in atomic size down the group, the electron clouds of these non-polar atoms become increasingly polarized, which leads to weak van Der Waals forces among the atoms. Thus, the formation of liquids and solids is more easily attainable for these heavier elements because of their melting and boiling points.

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Explain the trends in ionisation enthap, density, melting and boiling point of gr 18 elements

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