Which statement is true of all atoms that are anions? a. The atom has more electrons than protons. b. The atom has more protons than electrons. c. The atom has fewer protons than does a neutral atom of the same element. d. The atom has more neutrons than protons.

Verified step by step guidance

1. Understand the definition of an anion: An anion is a negatively charged ion, which means it has gained extra electrons.
2. Compare the number of electrons to protons in an anion: Since an anion is negatively charged due to extra electrons, it must have more electrons than protons.
3. Evaluate option a: 'The atom has more electrons than protons.' - This statement aligns with the definition and characteristics of an anion.
4. Review other options for accuracy: Options b, c, and d do not correctly describe all anions. Option b is incorrect as it describes a cation, not an anion. Option c is incorrect as it discusses changes in proton number, which does not occur during ion formation. Option d is incorrect as it relates to neutrons, which do not influence the charge of the atom.
5. Conclude that the correct answer is option a: 'The atom has more electrons than protons.' as it is the only statement that accurately describes all anions.