Across
- 4. A pure substance made of only one type of atom.
- 5. Shell A grouping of electrons surrounding the nucleus of an atom.
- 9. The substances formed as a result of a chemical reaction.
- 12. A type of mixture where the components are not evenly distributed.
- 13. Structure The arrangement of protons, neutrons, and electrons within an atom.
- 14. The smallest unit of an element, consisting of protons, neutrons, and electrons.
- 16. A type of mixture that has a uniform composition throughout.
- 18. Bond The force that holds atoms together in a molecule or compound.
- 20. A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound.
Down
- 1. A particle with no charge, found in the nucleus of an atom.
- 2. An element that usually lacks metallic properties and is often a poor conductor of electricity.
- 3. A substance formed when two or more elements are chemically bonded together.
- 6. A negatively charged particle that orbits the nucleus of an atom.
- 7. A mixture of two or more elements, where at least one is a metal.
- 8. Substance A material that has a constant composition and consistent properties throughout.
- 9. A positively charged particle found in the nucleus of an atom.
- 10. The starting substances that undergo a chemical reaction.
- 11. An element that has properties intermediate between metals and non-metals.
- 15. Equation A symbolic representation of a chemical reaction, showing the reactants and products.
- 17. A type of element that is typically shiny, malleable, and a good conductor of electricity.
- 19. Levels The specific energies that electrons can have in an atom.
- 20. A combination of two or more substances that are not chemically bonded.