The table below gives some properties of three elements in group (VII) of the periodic table. Study it and answer the questions that follow:

The table below gives some properties of three elements in group (VII) of the periodic table.
Study it and answer the questions that follow:

a) Which element is in liquid form at room temperature? Give a reason.
b) Explain why the boiling point of iodine is much higher than that of chlorine.

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a) Bromine: Its melting point is below room temperature and its boiling point above room temperature

b) Iodine molecules is larger than that of chlorine hence the van der Waal’s forces between the molecule
are stronger than those of chlorine.

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johnmulu answered the question on April 10, 2017 at 08:38

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