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Thursday, August 6, 2020

Why bismuth has low m.p. while if going down the group m.p. increases?

This may presumably be due to more tendency of Bi to form three rather than five covalent bonds (inert pair effect). Thus there are weak forces of attraction between their atoms in solid state, accounting for its low m.p.

Related Questions:

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What are abnormal behaviour of Nitrogen atom as compared to other family members?

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Why bond angle of hydrides of group 15, decreases down the group?

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