a. Write down the electronic configuration and no. of neutrons for the
following elements -
(1)9F19
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.9F19=1s22s22p2x2p2y2p1z,.16S32=1s22s22p63s23p2x3p1y3p1z,.18Ar38=1s22s22p63s23p6
(i) Max. nuclear charge =18 in .18Ar38 (ii) Minimum no. of neutrons =10 in .9F19
(iii) Maximum no. of unpaired electrons =2 in .16S32
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