Question

Below is the structure of atom, which represents the __________ of hydrogen.

• A. isotopes
• B. electronic configuration
• C. atomic number
• D. mass number

Answer 1

The correct option is A isotopes

The structure of an atom represents the isotopes of hydrogen. Isotopes are the atoms of the same element with the same atomic number but different mass number due to the difference in the number of neutrons.
Atomic number: The number of protons present in the nucleus of an element is called its atomic number.
Mass number: The sum of a number of protons and neutrons present in the nucleus of an atom is called the mass number of that element.