Across
- 4. Element with the largest radius.
- 5. Property that can be observed without changing the composition of a material.
- 9. Loss of electrons.
- 13. Pressure and volume are ___________ proportional.
- 15. Atoms of the same element with different numbers of neutrons.
- 18. tiny, central, dense, positively charged core of an atom.
- 20. Group 17 elements.
- 21. Minimum energy for a reaction to occur.
- 23. Reaction that happens in the sun.
- 24. Type of covalent bond where electrons are shared unequally.
- 25. Prefix for 4.
Down
- 1. Energy is released.
- 2. Chemical formula that shows the lowest ratio of atoms.
- 3. Reaction rates at equilibrium are ________.
- 6. Substance that dissolves to make a solution.
- 7. substance that can be changed into simpler substances by chemical means.
- 8. Weakest intermolecular force.
- 10. Metric base unit of mass.
- 11. Subatomic particle with a mass of 1 and a charge of 0.
- 12. Variable that is deliberately changed by the experimenter.
- 14. Elements in the same _________ have similar properties
- 16. Positively charged ion.
- 17. Group 1 elements are ________ metals.
- 19. Less than the maximum amount of solute dissolved.
- 22. Proton donor.