Question

Nucleus of Hydrogen atom consists of
A) 2 protons only
B) 2 neutrons only
C) 1 proton only
D) 1 electron only

Answer 1

Protons have a charge of +1, and a mass of approximately 1 atomic mass unit (amu). Elements differ from each other in the number of protons they have, e.g. Hydrogenhas 1 proton; Helium has 2. The neutronalso is located in the atomic nucleus(except in Hydrogen). ... The charge on an electron is -1.

Answer 2

Nucleus of Hydrogen atom consists of 1 proton only. so, the answer is

C) 1 proton only