Question

question completion status: an atom that is neutrally charged contains a. the same number of neutrons and electrons. b. the same number of neutrons and protons. c. the same number of protons and electrons. d. no charged particles. question 2 isotopes always have a. the same number of protons but different number of neutrons. b. the same number neutrons of but different number of protons. c. the same number neutrons of but different number of electrons. d. the same number of electrons but different number of neutrons. question 3 which component of an atom does not significantly add to its mass? a. proton b. neutron c. electron d. molecule

Explanation:

1. Protons are positively - charged, electrons are negatively - charged. Equal numbers balance charge.
2. Isotopes are same - element variants with different neutrons.
3. Electrons have much smaller mass than protons and neutrons.

Answer:

1. C. the same number of protons and electrons.
2. A. The same number of protons but different number of neutrons.
3. C. Electron