Across
- 3. are made up of two or more elements
- 6. Formula is an example of H2O
- 9. is a constant term related to the properties of a product
- 10. have a positive charge
- 11. clouds are a group of electrons circulating the nucleus or the molecule
Down
- 1. is often used to refer to members of a set of elements
- 2. are made up of two or more atoms mixed together
- 4. Symbols is a one or two lettered designation of an element
- 5. have a neutral charge
- 7. are the smallest part of the unit
- 8. have a negative charge