Classification of Elements and Periodicity in Properties - Result Question 9

####9. For the second period elements the correct increasing order of first ionisation enthalpy is :

(a) Li<Be<B<C<N<O<F<Ne [2019]

(b) Li< B <Be<C<O<N< F <Ne

(c) Li< B <Be< C <N< O < F <Ne

(d) Li<Be< B < C < O < N < F <Ne

Show Answer

Solution:

  1. (b) Consider the stability of electronic configuration after loss of one electron.
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