Across
- 1. an immense cloud of gas and dust in interstellar space
- 5. Number the sum of the number of neutrons and protons in an atomic nucleus
- 7. A nutrient that the body needs to stay healthy
- 9. Table arrangement of chemical elements according to atomic number
- 13. A chemical element with the symbol CI
- 14. not resembling shiny, malleable, conductive elements
- 16. A subatomic particle with zero charge
- 18. Mass the property of an atom that causes it to have weight
- 19. a chemical element or alloy that is usually a shiny solid
Down
- 2. Type of medicine that is known as a mood stabilizer
- 3. It is a type of electrolyte
- 4. a fourth state of matter distinct from solid, liquid or gas
- 6. A type of metal and is a shiny silver-white metal
- 8. a star that explodes and becomes luminous in the process
- 10. A colorless gas that most living things need to survive
- 11. A stable particle with positive charge
- 12. The positively charged center of an atom
- 15. Mineral that is found in many foods
- 17. The smallest component of an element
- 20. a mixture containing two or more metallic elements