| પરમાણુ ક્રમાંક | $I_1$ $(kJ/mol)$ | $I_2$ $(kJ/mol)$ | $I_3$ $(kJ/mol)$ |
| $n$ | $I_1$ | $I_2$ | $I_3$ |
| $n+1$ | $1681$ | $3374$ | $6050$ |
| $n+2$ | $2081$ | $3952$ | $6122$ |
| $n+3$ | $496$ | $4562$ | $6910$ |
| $n+4$ | $738$ | $1451$ | $7733$ |
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| List-$I$ (ઇલેક્ટ્રોનિક રચના) | List-$II$ ($\Delta_{i}H$ in $kJ\ mol^{-1}$) |
| $(a)$ $1s^{2} 2s^{2}$ | $(i)$ $801$ |
| $(b)$ $1s^{2} 2s^{2} 2p^{4}$ | $(ii)$ $899$ |
| $(c)$ $1s^{2} 2s^{2} 2p^{3}$ | $(iii)$ $1314$ |
| $(d)$ $1s^{2} 2s^{2} 2p^{1}$ | $(iv)$ $1402$ |
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