Science

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Across
  1. 1. when the molecules have more than one type of atom.
  2. 3. Whenever atoms of the same type are grouped together.
  3. 5. a building block because they can be combined in many.
  4. 6. relating to chemistry, or the interactions of substances as studied in chemistry.
  5. 8. diverse in character or content
  6. 9. a metal made by combining two or more metallic elements, especially to give greater strength or resistance to corrosion
Down
  1. 2. a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., without breaking chemical bonds.
  2. 4. whenever a type of atom is held together with chemical bonds.
  3. 7. when different elements are grouped together.
  4. 8. of the same or a similar kind or nature.