What kind of substances are formed from multiple atomic elements?

Molecules are formed when two or more atoms bond together, creating a distinct chemical entity. These can be made from the same element or different elements. When different atomic elements combine in specific ways through chemical bonding, they create compounds, which are a type of molecule.

In contrast, mixtures consist of two or more substances that are physically combined but not chemically bonded, meaning that the individual components retain their own properties. Solutions are a specific type of mixture where one substance is dissolved within another, creating a homogeneous mixture. Alloys, on the other hand, are mixtures of metals or metals with nonmetals that possess different properties than the individual metals.

Therefore, the term "molecules" accurately describes the formation of substances from multiple atomic elements coming together but does not encompass the broader definitions provided by the other options.