Question
Correct orders of \(I^{st}\) I.P. are -
(i) Li < B < Be < C
(ii) O < N < F
(iii) Be < N < Ne
(i) Li < B < Be < C
(ii) O < N < F
(iii) Be < N < Ne
Answer: Option D
:
D
Down the group ionization potential (ionization enthalpy) decreases with increase in size.
Across a period, ionization potential decreases and then increases at the noble gasses.
Elements of group 2(IIA) have I.E more than that of group 13(IIA) as they have completely filled 's' orbital. Be > B
Elements of group 15(VA) have more than that of group 16(VIA) as they have half filled 'P' subshell. N > O
Inert gas elements have the highest I.P in a given period due to a stable electronic configuration.
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:
D
Down the group ionization potential (ionization enthalpy) decreases with increase in size.
Across a period, ionization potential decreases and then increases at the noble gasses.
Elements of group 2(IIA) have I.E more than that of group 13(IIA) as they have completely filled 's' orbital. Be > B
Elements of group 15(VA) have more than that of group 16(VIA) as they have half filled 'P' subshell. N > O
Inert gas elements have the highest I.P in a given period due to a stable electronic configuration.
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