Question

a) Which elements is are non metal valency ?
b) Which element will form only covalent bonds ?
c) Out of J, B, I which has the largest atomic size ?
d) Which is least reactive among all ?
e) Tol which family does F and H belong ?

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Answer 1

1. "B" element is non-metal with valency 2. "B" element, in this case, is oxygen.

The atomic number of oxygen is 8 and its electronic configuration is 2, 6.

There are 6 electrons in the valence shell, so 2 electrons are required to complete its octet.

So it accepts 2 electrons to complete its octet. So, it is a non-metal.

2. Element E is present in Group 14. It has a valency of four. Thus, among the given elements, it forms only covalent compounds.

3. francium is the largest.

4.copper, gold, and silver are the least reactive.

5 H and F element belongs to Noble gas family

Answer 2

Don’t know join up ⬆️ or something but you can’t get the answer on you or not I don’t want