Atomicity is determined by the number of _ present in a molecule.

Explanation

Option A: This option is not directly related to atomicity. Dots are often used in structural formulas or Lewis dot diagrams to represent the valence electrons of atoms, but they do not determine the atomicity of a molecule. Option B: Atomicity refers to the number of atoms bonded together to form a molecule. The number of atoms present in a molecule determines its atomicity. For example, a molecule of oxygen gas (O2) has an atomicity of 2 because it consists of two oxygen atoms bonded together. Option C: Sub particles generally refer to particles that make up atoms, such as protons, neutrons, and electrons. While these sub particles contribute to the overall structure of atoms, they do not directly determine the atomicity of a molecule. Option D: Electrons are negatively charged subatomic particles that orbit around the nucleus of an atom. While electrons play a crucial role in chemical bonding, they alone do not determine the atomicity of a molecule. The atomicity is determined by the number of atoms present in a molecule.