Question

Two elements x and y have atomic numbers 12 and 16 respectively. To which period of the modern periodic table do these two elements belong? What type of bond will be formed between them and why? Also give the chemical formula of the compound

Answer 1

Answer:

Element x and y are magnesium and sulfur respectively. These elements belong to 3rd period in modern periodic table.They will form ionic bond.There compound name is magnesium sulfide

Answer 2

Explanation:

Atomic number is the sum of total number of protons present in an element. And, each element of the periodic table will have a different atomic number.

Hence, element with atomic number 12 is magnesium and element with atomic number 16 is sulfur.

Magnesium being a metal will lose its valence electrons in order to gain stability. On the other hand, sulfur being a non-metal will need to gain two electrons in order to attain stability.

Therefore, when magnesium will donate its valence electrons to sulfur atom then it will result in the formation of an ionic bond.

As an ionic bond is the bond formed due to transfer of electrons from one atom to another.

The ionic compound formed will be $Mg_{2}S$. The reaction equation will be as follows.

                $2Mg + S \rightarrow Mg_{2}S$