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Question
Give reason for the following:
Ionisation potential of the element increases across a period.
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Solution
As atomic size decreases and nuclear charge increases, it becomes more difficult to remove electrons, requiring more energy and increasing electron potential.
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Give one word or phrase for the following:
Formation of ions from molecules
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Arrange the elements of group 17 and group 1 according to the given conditions.
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A = 3.79 electron volts
B = 3.56 electron volts
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