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tgpatterson02
The correct answer is D.)

Electrons are negatively charged and the smallest subatomic particle. 
Neutrons have no charge and weigh about the same as a proton.
Protons have a positive charge and weight about the same as a neutron.

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The atom is made up of smaller particles. known as subatomic particles.   Option D is correct. The mass of neutron is nearly equal to the mass of proton.

Sub atomic Particles:

  • The atom is made up of smaller particles. known as subatomic particles. They are Electron, Proton and Neutron.
  • Electron: It is a negatively charged mass less particle.
  • Proton: It is  positively charged molecule. it has mass near to the neutron.
  • Neutron: It is a neutral particle have mass of 1 u( atomic mass unit).

Hense, we can conclude that Option D is correct. The mass of neutron is nearly equal to the mass of proton.

To know more about sub atomic particles, refer to the link:

https://brainly.com/question/11942537

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