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Question
Which one of the following alkali metals has lowest melting point?
Which one of the following alkali metals has lowest melting point?
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Solution
The correct option is A Caesium
In alkali metals, Caesium has the lowest boiling point (28.44 C) as we can see that in alkali metal as we move down the group in the periodic table the distance of the electron from the nucleus increases thus the metallic bond weakens thus the melting point of the metal decreases.
In alkali metals, Caesium has the lowest boiling point (28.44 C) as we can see that in alkali metal as we move down the group in the periodic table the distance of the electron from the nucleus increases thus the metallic bond weakens thus the melting point of the metal decreases.
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