Which subatomic particle has a negative electrical charge?

A. Proton

B. Neutron

C. Electron

D. Nucleus

Answer: C. Electron

Rationale: Electrons carry a negative charge, while protons are positive and neutrons have no

electrical charge.

2.

Which subatomic particle determines the atomic number of an element?

A. Electron

B. Neutron

C. Proton

D. Nucleus

Answer: C. Proton

Rationale: The atomic number equals the number of protons in an atom's nucleus.

3.

What is th...
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