Across
- 5. A mixture where substances are evenly distributed.
- 7. The amount of matter in an object.
- 8. The horizontal rows on the periodic table.
- 9. A substance made of two or more elements chemically bonded together.
- 10. The smallest unit of an element that retains its properties.
- 14. Positively charged particles located in the nucleus.
- 15. Negatively charged particles found outside the nucleus.
- 17. The reactants are changed into new substances during this process.
- 19. The vertical columns on the periodic table with similar properties.
- 20. The center of an atom containing protons and neutrons.
Down
- 1. The number of protons in an atom’s nucleus, which determines the element.
- 2. Particles in the nucleus with no charge.
- 3. A chemical bond formed by sharing electrons.
- 4. The law stating matter cannot be created or destroyed.
- 6. The measure of how acidic or basic a substance is.
- 11. A substance with a pH higher than 7.
- 12. The substance dissolved in a solution.
- 13. A chemical bond formed by transferring electrons.
- 16. The substance that dissolves another substance in a solution.
- 18. A substance with a pH lower than 7.