Across
- 4. A bond where atoms share electrons
- 5. A positively charged subatomic particle
- 8. A substance formed from two or more elements
- 11. Atoms of the same element with different numbers of neutrons
- 12. Solid changing directly to gas
- 13. The substance in which a solute is dissolved
- 16. A bond where atoms share electrons
- 17. A solid that forms from a solution during a reaction
- 18. Substance that speeds up a chemical reaction
- 21. Symbolic representation of a chemical reaction
- 22. Mass per unit volume
- 24. Two or more atoms bonded together
- 25. Substance that speeds up a chemical reaction
- 29. Loss of electrons
- 30. Gain of electrons
- 31. Electrons in the outer shell of an atom
Down
- 1. A solution with a pH of 7
- 2. A negatively charged subatomic particle
- 3. When a liquid becomes a gas
- 6. An atom with a net electric charge
- 7. Type of change that creates a new substance
- 9. Table that arranges elements by atomic number
- 10. Gases in Group 18
- 14. When a solid becomes a liquid
- 15. A substance that accepts protons
- 19. A subatomic particle with no charge
- 20. Amount of matter in an object
- 23. A homogeneous mixture
- 26. The substance that is dissolved
- 27. Connection between atoms
- 28. Unstable atoms that emit radiation