MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistryd and f Block elementsOther Compounds of d-block Elements
Mercury is the only metal that is liquid at 0ºC. This is due to its :
A.Very high ionisation energy and weak metallic✓ Correct
B.Low ionisation potential
C.High atomic weight
D.High vapour pressure
Explanation
Mercury is the only metal that is liquid at 0°C. This is because the effective nuclear charge is very high, as a result, mercury has high ionization energy and the bonds between mercury atoms are very weak. Therefore, though mercury is a metal but it is liquid at 0°C.
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