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- Solve! Based on lattice energy and other considerations which one of the following alkali metal chlorides is expected to have the highest melting point?
- #Engineering
- #Chemistry
- #Classification of Elements and Periodic table
- #Joint Entrance Examination Main
Based on lattice energy and other considerations which one of the following alkali metal chlorides is expected to have the highest melting point?
- Option 1)
- Option 2)
- Option 3)
- Option 4)
Answers (1)
As we learnt in
Alkali Metal -
Each period starts with an alkali metal whose outermost electronic configuration is ns1
-
Despite the fact that has higher lattice energy than
,
has lower melting point because of its covalent nature. Also, as we go down the group's lattice energy generally decreases as size of alkali metal atom increases.
Option 1)
This option is incorrect.
Option 2)
This option is correct.
Option 3)
This option is incorrect.
Option 4)
This option is incorrect.
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