Across
- 3. Elements arranged in vertical columns of the periodic table that share the same properties.
- 5. A chart of all known elements that scientists reference when working with atoms or molecules.
- 7. Elements that are good conductors of electricity and thermal energy and are often solid at room temperature.
- 8. A subatomic particle of an atom that is negatively charged and orbits the nucleus extremely fast.
- 9. Chemicals combining to cause new substances to be formed.
- 11. Protons and neutrons clump together at the center of an atom to form the nucleus of an atom.
- 12. A positively charged subatomic particle located at the center of an atom.
- 13. The smallest particle of matter made up of protons, neutrons, and electrons
Down
- 1. Repeating rows of the periodic table that demonstrate patterns of how elements are arranged.
- 2. More than one atom combined to form a substance
- 4. Pure substances made of only one type of atom.
- 5. A change in state of matter where no new substance is formed.
- 6. Anything that has mass and takes up space.
- 10. Characteristics of matter that can be used to identify substances.
- 11. A subatomic particle with no charge located at the center of an atom.