Across
- 3. Level The specific energies that electrons can have in an atom.
- 6. State of matter with no definite shape or volume.
- 7. Process where a liquid turns into a solid
- 9. Central part of an atom containing protons and neutrons.
- 10. State of matter with a definite shape and volume.
- 12. Process of liquid turning into a gas.
- 14. Positively charged particle in the nucleus.
- 15. Point Temperature at which a liquid turns into a gas.
- 17. Process of gas turning into a liquid.
Down
- 1. Process where a solid turns directly into a gas.
- 2. Temperature at which a solid turns into a liquid.
- 4. Number Sum of protons and neutrons in the nucleus.
- 5. Neutral particle found in the nucleus of an atom.
- 8. Negatively charged particle orbiting the nucleus.
- 11. State of matter with a definite volume but no definite shape.
- 13. Number Number of protons in an atom’s nucleus.
- 16. Atoms of the same element with different numbers of neutrons.