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Q: Which among the following is present inside the nucleus of an atom?
  • A. Protons and Neutrons
  • B. Electrons and Protons
  • C. Neutrons and Electrons
  • D. Neutrons, Protons, and Electrons
Correct Answer: Option A - Atom is the smallest particle of an element, which can participate in any chemical reaction but cannot remain in free state. Atomic nucleus consist of protons and neutrons, while electrons are located on circular path of nuclei.
A. Atom is the smallest particle of an element, which can participate in any chemical reaction but cannot remain in free state. Atomic nucleus consist of protons and neutrons, while electrons are located on circular path of nuclei.

Explanations:

Atom is the smallest particle of an element, which can participate in any chemical reaction but cannot remain in free state. Atomic nucleus consist of protons and neutrons, while electrons are located on circular path of nuclei.