Periodic Table Crossword

1. identifying or acknowledging the existence of something.
6. combinations of symbols that show the elements present in a compound and the ratio of their atoms (e.g., H2O for water).
7. representations used to stand for elements (e.g., H for hydrogen).
8. substances composed of two or more elements chemically combined in a fixed ratio.
10. substances composed of two or more elements or compounds physically mixed together but not chemically combined.
11. formulas, notation that indicates the type and number of atoms present in a molecule of a substance.
12. substances that consists of only one type of atom, which cannot be broken down into simpler substances.
14. the relationship between two quantities, often expressed in terms of a fraction.

2. providing information or reasons to clarify a concept.
3. representing or showing a system using diagrams, visuals, or other methods.
4. displayed or depicted in a specific way.
5. relating to substances and processes involved in chemistry.
9. small units that make up matter.
13. set or established in a stable manner; not subject to change.
15. how particles are organized or positioned relative to one another in a substance.