Across
- 3. substances mixed together but can be reversed
- 6. table where all elements are located
- 7. types of elements that are solid at room temp
- 9. Building block of all things
- 10. part of an atom with a positive charge
- 11. part of an atom with a neutral charge
- 12. state of matter where atoms can move freely
Down
- 1. the irreversible change
- 2. state of matter where atoms are tightly compacted
- 4. part of an atom with a negative charge
- 5. state of matter where atoms can move slightly
- 8. groups of elements chemically bonded together