Question

Hydrogen atoms, in a ${H_2}$ molecule______ their electrons.
(A) share
(B) donate
(C) accept
(D) none of the above

Answer 1

In order to know about how the bond is formed between the two-hydrogen atoms in a hydrogen molecule, we must first know about the number of valence electrons present in the hydrogen atom.

Complete answer:
Let us first understand about the hydrogen atom. Hydrogen is a chemical element with an electronic configuration of $1{s^1}$. The atomic number of hydrogen atoms is Z = 1. As each hydrogen atom will be having one electron, they both will be sharing this electron mutually to form a chemical bond. This will allow the hydrogen atom to attain the nearest stable electronic configuration of the noble gas, Helium which is 2 electrons in K-shell. The chemical bond that is formed in Hydrogen molecules is covalent bond. This covalent bond is a nonpolar covalent because the electronegativity present in both the hydrogen atom is the same.

Therefore, the correct answer is option (A).

Additional information:
Different characteristics of hydrogen are:
- Colourless
- Odourless
- Tasteless
- Non-toxic
- Non metallic

Note:
There are also other types of bond formation present in different types of molecules other than the covalent bond, they are:
- Ionic bond
- Metallic bond
- Polar covalent bond
- Non polar covalent bond