Pls answer the question 15
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is answer is - (4) 1 valence electron .
lovy24:
Yes
observe that 1st I.E. is much lower.
then suddenly 2nd IE increases by large amount .
Yes
And IE 3 and 4 are also increased
but they increases gradually .
they are increasing but by lower amount than 2nd IE
i hope understand now
Thanks
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