Question

most of the mass of an atom is contained in___ a.protons , b.electron , c. center ,d.neutrons​

Answer 1

Explanation:

Most of an atom's mass is in the nucleus—a small, dense area at the center of every atom, composed of nucleons.

Nucleons include protons and neutrons. All the positive charge of an atom is contained in the nucleus, and originates from the protons

Answer 2

CENTRE

I think Nucleus is mentioned as centre

Most of an atom's mass is in the nucleus—a small, dense area at the center of every atom, composed of nucleons. Nucleons include protons and neutrons. All the positive charge of an atom is contained in the nucleus, and originates from the protons.

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