First three ionisation energies (in kJ/mol) of three representative elements are given below: Element \[I{{E}_{1}}\] \[I{{E}_{2}}\] \[I{{E}_{3}}\] P 495.8 4562 6910 Q 737.7 1451 7733 R 577.5 1817 2745 Then incorrect option is:

First three ionisation energies (in kJ/mol) of three representative el

1.	First three ionisation energies (in kJ/mol) of three representative elements are given below: Element \[I{{E}_{1}}\] \[I{{E}_{2}}\] \[I{{E}_{3}}\] P 495.8 4562 6910 Q 737.7 1451 7733 R 577.5 1817 2745 Then incorrect option is:
A.	Q: Alkaline earth metal
B.	P: Alkali metals
C.	R: s-block element
D.	They belong to same period
Answer» D. They belong to same period

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First three ionisation energies (in kJ/mol) of three representative elements are given below: Element \[I{{E}_{1}}\] \[I{{E}_{2}}\] \[I{{E}_{3}}\] P 495.8 4562 6910 Q 737.7 1451 7733 R 577.5 1817 2745 Then incorrect option is:

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