Periodic Table
Across
- 2. Known for arranging the periodic table
- 4. Every element has a different _______ number
- 6. Nonmetals typically form ______ ions
- 9. Group 2 metals
- 10. Metals typically form _______ ions
- 11. Group found in between metals and nonmetals
- 12. Number that is also the atomic number of an atom
- 13. Total of protons and electrons
- 15. The number of groups on the periodic table
- 17. gas Colorless, oder-less gasses with low chemical reactivity
- 19. Atomic mass of 35.435
Down
- 1. Used to describe objects that conduct electricity well
- 3. Outer shell electrons
- 5. The vertical columns are called either families or_____
- 7. Group 1 metals
- 8. basic unit of a chemical element. The building blocks of life
- 14. A substance that cannot be broken into other substances
- 16. Particle with no charge
- 18. 9 on the periodic table
- 20. Most active nonmetals