Across
- 2. A change in which one or more new substances are produced or they'res a change in the starting substance.
- 4. Any property of a substance that does not have a numerical number is a ______ property such as colour or odour.
- 5. A change in which no new substances are formed and the substance remains unaltered.
- 6. The temperature at which a substance changes state from a liquid to a gas.
- 11. The elements found in the upper right portion of the periodic table are called ______.
- 15. A negatively charged particle in an atom that orbits the nucleus.
- 17. An ____ is a pure element that cannot be broken down in, by any physical or chemicals means.
- 19. The ____ of a substance is a ratio of its mass to its volume.
- 21. A positively charged ion.
- 22. The ____ number is the number of protons and neutrons in an atom's nucleus.
Down
- 1. The temperature at which a substance changes state ffrom a liquid to a solid.
- 3. A _____ substance is a substance that is made up of only one type of particle.
- 7. The ____ gases are named this because of their stable nature and unreactivity.
- 8. A _____ bond is a bond formed when two non-metal atoms share electrons.
- 9. A _____ is two or more atoms of the same or different elements that are chemically joined together.
- 10. A pure substance composed of two or more elements that have been chemically joined.
- 12. A substance with two different types of particles is known as a ______.
- 13. The smallest unit of an element.
- 14. An _____ is a solid solution made up of two or more moetals.
- 16. A row on the periodic table is called a _____.
- 18. Potassium, Calcium, and Lithium are all on the periodic table and are all examples of ______.
- 20. A particle that has became charged. Either positively or negatively.
