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The atomic no. Of nitrogen ,oxygen and fluorine are 7,8 and 9 respectively.write the electronic configuration of each element and answer the following:(a)out of N,OandF which is most electronegative and which one is least electronegative?(B)what is no. of valence electrons of F?(C)what is the valency of each of N,OandF?
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Nitrogen-2, 5
oxygen-2, 6
fluorine-2, 7
a) most electronegative is fluorine
and electropositive is oxygen
b) 1
c) N-3
O-2
F-1
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