Explain why 1st ionization potential of 2nd group element is higher than 1st group element but 2nd ionization potential is just reverse..??
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you see first group and second group configuration ,
configuration of 1st group= ns^1
configuration of 2nd group=ns^2
now ,
if we remove electron from both group .i see first group require more energy then 2nd due to , here you see 2nd group elements complete their octet and but in 1st group incomplete octet , we know elements which complete octet , is stable hence high energy is required to remove electron ,so 2nd group elements have more 1st ionisation energy then 1st group.
now,
configuration when one electron remove ,
configuration of 1st group =(n-1)p^6
configuration of 2nd group =ns^1
now you see 1st group elements complete octet so ,more energy required to remove electron from 1st group ,
hence ,
2nd ionisation energy is greater in 1st group compare to 2nd group
configuration of 1st group= ns^1
configuration of 2nd group=ns^2
now ,
if we remove electron from both group .i see first group require more energy then 2nd due to , here you see 2nd group elements complete their octet and but in 1st group incomplete octet , we know elements which complete octet , is stable hence high energy is required to remove electron ,so 2nd group elements have more 1st ionisation energy then 1st group.
now,
configuration when one electron remove ,
configuration of 1st group =(n-1)p^6
configuration of 2nd group =ns^1
now you see 1st group elements complete octet so ,more energy required to remove electron from 1st group ,
hence ,
2nd ionisation energy is greater in 1st group compare to 2nd group
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