The atomic number or beryllium is 4. while that of oxygen is 8. Write down the electronic configuration of the two and deduce the valency from the same.

ElementAtomic numberElectronic configurationValencyBeryllium42, 22Oxygen82, 62

The atomic number or beryllium is 4. while that of oxygen is 8. W…

Human hand, wing of cockroach, forelimb of bull, flipper of whale

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$N _{2(g)}+ H _{2(g)} \rightleftharpoons NH _{3( g )}$

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