Question:
The correct order of highest ionizational potential of Be,B,C,N,O is .......This is the qstn...and rhe answer is given B less than Be less than C less than O less than N.I want to ask how it came
Answer:
In the periodic table, Be, B, C, N, O is placed in the 2nd period from left to right.
We know that accross a period, the size of the atom decreases, and hence the nucleus charge increase with the decrease in the atomic radii. As the nuclear charge increases, it becomes more difficult to remove an electron from the atom, and hence the ionisation potential also increases.
Thus, the correct order of increase in ionissation potential is Be<B<C<N<O.
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