Question

atoms of 16o, 17o, and 18o have the same number of? protons, but a different number of electrons. electrons, but a different number of protons. protons, but a different number of neutrons. d. none of the above level 5 q3 a neutral atom becomes a positive ion when it an electron a proto a proton an elect

Explanation:

For the first question (about \(^{16}\text{O}\), \(^{17}\text{O}\), \(^{18}\text{O}\)):

Isotopes (like these oxygen isotopes) have the same atomic number (so same number of protons) and electrons (in neutral state), but different mass numbers. Mass number = protons + neutrons, so different neutrons. Option A is wrong (same electrons in neutral), B is wrong (same protons), C matches (same protons, different neutrons).

Answer:

C. Protons, but a different number of neutrons

For the second question (neutral atom to positive ion, though options are cut off, typical logic: positive ion is formed by losing electrons (since electrons are negative, losing them makes net positive charge). If options include "loses an electron", that's correct. But based on visible start, assuming standard question: a neutral atom becomes a positive ion by losing electrons (since protons > electrons then). If the options (partially visible) have "loses an electron" as a choice, that's the answer. But since full options aren't clear, if we assume the common question: a neutral atom becomes a positive ion when it loses one or more electrons. So if an option is "loses an electron", that's correct.