Question

The atomic number of elements A and B are 12and 8 respectively.they cobine together. Write down the formula of in the compound

Answer 1

A = 2,8,2

B = 2,6

Hence the possible compound is AB2.

Answer 2

element A with atomic no. 12 is mgnesium [2,8,2]
so,valency =2+
element B with atomic no. 8 is oxygen [2,6]
so, valency =2-
therefore formula of the compound is[MgO]/(Magnesium Oxide)