Q. 145.0( 1 Vote )
An atom with 3 protons and 4 neutrons will have a valency of:
An atom with 3 protons would have 2 electrons in its innermost shell and 1 proton in its outermost shell. The outermost proton could be easily given away by the atom to attain a stable two electron inner shell configuration. So, the valency would be 1.
Hence the correct option is C.
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