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Classification of Elements and Periodicity in Properties
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26/08/2021 11:40 am
Topic starter
Which of the following ionisation energy values for calcium show a sudden increase?
(a) Third
(b) Second
(c) First
(d) Fourth
1 Answer
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26/08/2021 11:43 am
Correct answer: (a) Third
Explanation:
Ca = 3s2 3p6 4s2
Ca2+ = 3s2 3p6 4s0
(Stable noble gas configuration) Hence, there would be sudden increase in IE3 value.