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Q: The nucleus of a hydrogen atom is made up of?
  • A. Only 1 proton
  • B. Protons, neutrons and electrons
  • C. 2 electrons and 1 proton
  • D. There is nothing in it
Correct Answer: Option A - The hydrogen atom has one proton and one electron. The proton resides in the nucleus of the atom and the electron revolves around the nucleus. Neutron is absent in hydrogen atom.
A. The hydrogen atom has one proton and one electron. The proton resides in the nucleus of the atom and the electron revolves around the nucleus. Neutron is absent in hydrogen atom.

Explanations:

The hydrogen atom has one proton and one electron. The proton resides in the nucleus of the atom and the electron revolves around the nucleus. Neutron is absent in hydrogen atom.