B.)if element has 1,2,3,4 Valence Electrons, its valency will be 1,2,3,4 repectively.if element has 5, 6, 7, 8 valence electron its valency will be 3,2,1,0.elements with atomic number 9 has electronic constitution 2, 7 so its balance will be 1
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Answer:tharki nikal pehli phursat me
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