Question

An element P belongs to group 2 and element Q belongs to group 17 of the periodic table.
i) How many valence electrons are there in P?
ii) What is the valency of P?
iii) How many valence electrons are there in Q?
iv) What is the valency of Q?
v) Write the chemical formula of the compound of P and Q?

Answer 1

Answer:

check the explanation.

Explanation:

1)

two electrons

2)

valency of p is +2

3)

17 electrons

4)

valency of Q is -1

5)

chemical formula is

PO2

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