Across
- 3. – An atom or molecule that has gained or lost electrons and has a charge.
- 5. – A property of materials that break or shatter easily when force is applied.
- 7. – The smallest unit of an element that retains the properties of that element.
- 9. – A positively charged ion that has lost electrons.
- 10. – The way a mineral or metal reflects light, often described as shiny or dull.
- 11. Number – The number of protons in the nucleus of an atom, which determines the element.
- 13. – A negatively charged ion that has gained electrons.
- 14. – A column on the periodic table where elements have similar chemical properties.
- 17. – Atoms of the same element that have different numbers of neutrons.
- 19. – A property of metals that allows them to be stretched into wires.
- 21. – A neutral subatomic particle found in the nucleus of an atom.
- 22. Electron – The electrons in the outermost energy level of an atom that determine chemical reactivity.
- 23. – The dense center of an atom that contains protons and neutrons.
Down
- 1. Particle – A particle smaller than an atom, such as a proton, neutron, or electron.
- 2. Level – The fixed regions around the nucleus where electrons can be found.
- 4. – A term for elements that do not easily react with other substances, like the noble gases.
- 6. – A negatively charged subatomic particle that orbits the nucleus of an atom.
- 7. Mass – The total mass of an atom, primarily made up of the protons and neutrons in its nucleus.
- 8. – A property of metals that allows them to be hammered or rolled into thin sheets
- 12. – The ability of a material to allow the flow of heat or electricity.
- 15. – A positively charged subatomic particle found in the nucleus of an atom.
- 16. – (Duplicate) See #7: An atom or molecule that has gained or lost electrons and has a charge.
- 18. – A pure substance made of only one kind of atom.
- 20. Cloud – The region around the nucleus where electrons are likely to be found.