Across
- 5. are solids whose atoms are arranged in a highly ordered, repeating pattern
- 6. the basic unit of matter
- 7. composed of only one type of atom
- 8. tow or more atoms joined together by chemical bonds
Down
- 1. a structure made up of smaller repeating units
- 2. an observable characteristic of a substance
- 3. sticks or bars that represent chemical connections
- 4. anything that takes up space and has mass