The first ionisation energy of first atom is greater than \( \mathrm{P} \) that of second atom, ...
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The first ionisation energy of first atom is greater than
\( \mathrm{P} \)
that of second atom, whereas reverse order is true for
W
their second ionisation energy. Which set of elements is not in accordance to above statement?
(1) C, B
(2) S, P
(3) \( \mathrm{Be}, \mathrm{B} \)
(4) \( \mathrm{Mg}, \mathrm{Na} \)
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