Why hg is liquid and sc3+ ions are colourless and diamagnetic?
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Mercury (Hg) is the only metal that is liquid in nature at room temperature. This occurs because of the unique behaviour of its outermost shell electrons. The valence electrons do not allow for stronger interatomic bonds, resulting in a liquid state metal.
Scandium ion (Sc 3+) is diamagnetic and colourless in nature. The Sc atom has a 4s2 3d1 configuration. On attaining the Sc 3+ state, it loses the 4s and 3d electrons. Since there are no unpaired electrons, it is diamagnetic in nature. Also, there are no lone electrons which can excite to a higher energy state and emit colours. As a result, Sc 3+ appears to be colourless.
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Mercury (Hg) is the only metal that is liquid in nature at room temperature. This occurs because of the unique behaviour of its outermost shell electrons. The valence electrons do not allow for stronger interatomic bonds, resulting in a liquid state metal. Scandium ion (Sc 3+) is diamagnetic and colourless in nature.
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