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Metals are solid except :
  • a)
    mercury
  • b)
    gallium
  • c)
    sodium
  • d)
    iodine
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Metals are solid except :a)mercuryb)galliumc)sodiumd)iodineCorrect ans...
Mercury is the only metal that is a liquid at normal temperatures and pressure. Most metal atoms readily share valence electrons with other atoms. The electrons in a mercury atom are bound more tightly than usual to the nucleus. 
It takes very little heat to overcome the weak binding between mercury atoms. Because of the behavior of the valence electrons, mercury has a low melting point, is a poor electrical and thermal conductor and doesn't form diatomic mercury molecules in the gas phase.
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Most Upvoted Answer
Metals are solid except :a)mercuryb)galliumc)sodiumd)iodineCorrect ans...
Mercury is the only metal that is a liquid at normal temperatures and pressure. ... Because of the behavior of the valence electrons, mercury has a low melting point, is a poor electrical and thermal conductor and doesn't form diatomic mercurymolecules in the gas phase
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Metals are solid except :a)mercuryb)galliumc)sodiumd)iodineCorrect answer is option 'A'. Can you explain this answer?
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