What metals are relatively volatile and why?
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Answer:
The most volatile liquid is mercury
Explanation:
Mercury is the only metal that is a liquid at room temperature.
It has weak intermolecular forces and therefore a relatively high vapour pressure (0.25 Pa at 25 °C).
Mercury hangs on to its 6s valence electronstightly, so it doesn't share them readily with its neighbours in the metal crystal.
The attractive forces are so weak that mercury melts at -39 °C.
The 6s electrons are able to get quite close to the nucleus, where they move at speeds close to the speed of light.
The relativistic effects make these electrons behave as if they were much more massive than slower electrons.
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