Question

what is a proton? * 20 points
the small dense region consisting of protons and neutrons at the center of an atom
a stable subatomic particle with a positive electric charge
the total number of protons and neutrons in the nucleus of an atom
a subatomic particle that has no electric charge
a subatomic particle whose electric charge is negative

Explanation:

A proton is a stable subatomic particle. It has a positive electric charge. Let's analyze each option:

• The first option describes the nucleus (the small dense region consisting of protons and neutrons at the center of an atom), not a proton.
• The second option correctly defines a proton as a stable subatomic particle with a positive electric charge.
• The third option refers to the mass number (the total number of protons and neutrons in the nucleus of an atom), not a proton.
• The fourth option describes a neutron (a subatomic particle that has no electric charge), not a proton.
• The fifth option describes an electron (a subatomic particle whose electric charge is negative), not a proton.

Answer:

a stable subatomic particle with a positive electric charge