Across
- 3. electrons are shared equally
- 7. atom or molecule with a charge
- 8. pure substance, example: gold, sodium
- 10. point when concentrations of reactants and products have stabilized
- 11. neutral subatomic particle
- 14. starting material of a reaction
- 15. electrons are not shared equally
- 16. bond in which electrons are transferred
- 17. bond in which electrons are shared
- 21. negative ion
- 22. positive subatomic particle
- 23. elements necessary in minute amounts
- 24. number of protons in an atom of that element
- 25. number of neutrons plus protons in an atom of that element
Down
- 1. smallest unit of matter
- 2. anything that takes up space and has mass
- 4. created in a chemical reaction
- 5. describes an atom's attraction to electrons
- 6. positive ion
- 9. negative subatomic particle
- 12. describes an unstable isotope
- 13. atom of same element with different number of neutrons
- 18. interactions between temporarily charged portions of nonpolar molecules
- 19. electrons involved in bonding
- 20. intermolecular bond between water molecules