Question

An element belongs to third period and second group of the periodic table. The formula of its Oxides is.

Answer 1

Magnesium

Explanation:

As it is in period 3 valence shell is 3 that is n=3 and since it's present in group 2, it has 2 valence electrons in the third shell. Hence its valence shell configuration is 3s

2

.

Hence in the first orbital, it will have 2 whereas in second orbital it will have 8 electrons, on the whole, it has 12 electrons that is the atomic number is 12. Hence the name of the element is magnesium.

Answer 2

Sorry I don’t know this question properly. Sorry for the rubbish answer