Periodic Table and Subatomic Particles
Across
- 5. The energy levels where electrons orbit the nucleus
- 10. Negatively charged subatomic particle
- 11. Positively charged subatomic particle found in the nucleus.
- 12. The horizontal rows on the periodic table are called ______.
- 13. These metals are found in the center of the periodic table
- 14. The total number of protons and neutrons in the nucleus of an atom is called the atomic ____.
Down
- 1. The element with atomic number 1
- 2. The 17th group on the periodic table
- 3. Alkali metals are in this group
- 4. The number of protons in an atom's nucleus is its ______ number.
- 6. Subatomic particle with no charge.
- 7. The vertical columns on the periodic table.
- 8. Name of the element with the atomic number of 6
- 9. The 18th group on the periodic table