If NA is the Avogadro's number then the number of valency electrons in 4.2gm of nitride ion N-3 is?
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1.No .of ions in nitride ion N^3- is 10(neutral nitrogen has 5 e and three electrons are added)
2. No .of moles of N^3– is.
4.2/14=0.3 moles( given mass/mass of nitrogen)
2. No .of moles of N^3– is.
4.2/14=0.3 moles( given mass/mass of nitrogen)
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