Across
- 2. Material Safety Data Sheet=> form containing data regarding the properties of a particular substance with procedures for handling or working with that substance in a safe manner; includes information such as melting point, boiling point, flash point, toxicity, health effects, first aid, reactivity, storage, disposal, protective equipment, spill handling procedures and first aid.
- 3. The numbered rows of the periodic table. Numbers indicate the number energy levels (shells) for an atom.
- 4. Any substance present initially in a chemical reaction found to the left of the yield sign.
- 5. A positively charged subatomic particle that determines an element’s identity.
- 6. A change in a substance that does not involve a chemical reaction, so no new substance is formed.
- 7. Elements located to the right of the zigzag line on the periodic table. These are generally poor conductors.
- 8. The dense center of an atom containing the protons and neutrons.
- 9. The resulting substances in a chemical reaction found to the right of the yield sign.
Down
- 1. Particles smaller than an atom that combine to form an atom.
- 5. The formation of a solid in a solution during a chemical reaction.