give the mass number of an atom that has 10 protons 10 electrons and 11 neutrons

Question

CloudyClothy · Answer

The mass number is 21.The mass number of an atom is the sum of its protons and neutrons.GivenProtons = 10Neutrons = 11Mass number = Protons + NeutronsMass number = 10 + 11 = 21The mass number is 21.Electrons have negligible mass and do not affect the mass number. Only protons and neutrons, which are found in the nucleus, contribute to the atom’s mass number.

Answered by CloudyClothy | 2025-05-24

give the mass number of an atom that has 10 protons 10 electrons and 11 neutrons

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