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Which of the following pairs are about equal in mass?
A. Proton and electron
B. Electron and neuron
C. Proton and neutron
D. Nucleus and surrounding electrons

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abby544

Answer:

Proton and neutrons

Explanation:

they both have a mass of 1 amu or 1 atomic mass

The Proton and neutron pairs are about equal in mass.

So, option C is correct one.

What is mass number?

The sum of proton/electron neutron in an atomic nucleus is called mass number.

What is atomic nucleus?

  • The atomic nuclei contain electrically positive charge proton and neutral neutron.
  • The neutron and proton is held together by fundamental force which is also known as strong force.
  • The atomic nucleus acquires 0.1 % volume of the atom.

learn about mass number.

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