Question

level 5 q1 ns of ¹⁶o, ¹⁷o, and ¹⁸o have the number of? erotons, but a different number of electrons b. electrons, but a different number of protons c. protons, but a different number of neutrons d. none of the above level 5 q3 a neutral atom becomes a positive

Explanation:

Isotopes (like \(^{16}\text{O}\), \(^{17}\text{O}\), \(^{18}\text{O}\)) of an element have the same atomic number (number of protons) but different mass numbers. Mass number = protons + neutrons. Since protons are same, neutrons differ. In neutral atoms, electrons = protons, so electrons are same too. Option A is wrong (electrons same as protons). Option B is wrong (protons same). Option C matches: same protons, different neutrons.

Answer:

C. Protons, but a different number of neutrons