Final answer:
Yes, atoms of different elements have distinct characteristics due to their unique atomic structure, which defines their chemical properties.
Step-by-step explanation:
The question "Do atoms of different elements necessarily have distinct characteristics?" addresses a fundamental concept in chemistry regarding the uniqueness of elemental atoms. The answer to this question is a) Yes, atoms of different elements have distinct characteristics. Atoms of one element differ in properties from atoms of all other elements due to their unique atomic structure, particularly the number of protons in their nuclei. This defines the element's identity and determines its chemical properties and behavior in reactions. Compounds, which consist of atoms of two or more elements combined in a fixed whole number ratio, display properties different from those of their constituent elements. Nonetheless, these compounds follow consistent patterns: within a given compound, the ratios of the different types of atoms are always the same, illustrating that elements combine in constant proportions.