Periodic Classification and Periodic Properties - Result Question 16

####13. The set representing the correct order of first ionisation potential is

(2001, 1M)

(a) $K>Na>Li$

(b) $Be>Mg>Ca$

(c) $B>C>N$

(d) $Ge>Si>C$

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Answer:

Correct Answer: 13. (b)

Solution:

  1. In a group, ionisation energy decreases down the group

$$ Be>Mg>Ca $$



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