AP EAMCET · Chemistry · Classification of Elements and Periodicity in Properties
Which one of the following is correct order of second ionisation potential of \(\mathrm{Na}, \mathrm{Ne}, \mathrm{Mg}\) and \(\mathrm{Al}\) ?
- A \(\mathrm{Al} < \mathrm{Na} < \mathrm{Mg} < \mathrm{Ne}\)
- B \(\mathrm{Ne} < \mathrm{Al} < \mathrm{Na} < \mathrm{Mg}\)
- C \(\mathrm{Mg} < \mathrm{Al} < \mathrm{Ne} < \mathrm{Na}\)
- D \(\mathrm{Na} < \mathrm{Mg} < \mathrm{Ne} < \mathrm{Al}\)
Answer & Solution
Correct Answer
(C) \(\mathrm{Mg} < \mathrm{Al} < \mathrm{Ne} < \mathrm{Na}\)
Step-by-step Solution
Detailed explanation
The electronic configuration of \(\mathrm{Na}, \mathrm{Ne}, \mathrm{Mg}\) and \(\mathrm{Al}\) after the removal of an electron is as…
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