Question

Which of the following is/are true regarding hydrogen atom?

• A. It has only one electron
• B. It has only one neutron and no proton
• C. It is highly inflammable
• D. It has only one electron in its L-shell

Answer 1

Answer: (A), (C)

The correct options are
A It has only one electron
C It is highly inflammable

Hydrogen is the lightest and simplest known atom. It is an inflammable gas with 1 electron, 1 proton and no neutron in each atom. Thus, its atomic number and mass number is one. The only electron present is in the K-shell of the atom.