Question

which subatomic particle(s) give atoms their mass?
protons (positive charges)
electrons (negative charges)
neutrons (no charges)

Explanation:

To determine which subatomic particles give atoms their mass, we analyze the mass contribution of each particle:

• Protons: Have a significant mass (approximately \(1.6726 \times 10^{-27}\) kg) and are located in the nucleus.
• Electrons: Have a very small mass (approximately \(9.1094 \times 10^{-31}\) kg), so their contribution to the atom's mass is negligible.
• Neutrons: Also have a significant mass (approximately \(1.6749 \times 10^{-27}\) kg) and are in the nucleus.

Since protons and neutrons are in the nucleus and have most of the atom’s mass (electrons contribute almost nothing), both protons and neutrons are correct. However, if we consider the options as checkboxes (multiple correct), the correct ones are protons and neutrons. But if we assume a single - best - fit (though technically two), protons and neutrons are the main contributors. But looking at the options as individual choices, protons (positive charges) and neutrons (no charges) are the ones that give atoms their mass (electrons have negligible mass).

Answer:

A. protons (positive charges), C. neutrons (no charges)