Periodic Table Creator
Across
- 3. These elements surround the “staircase” of the periodic table
- 4. The ______ number is the same as the number of protons
- 7. All elements in a group contain the same number of what electron?
- 8. What does Rb stand for?
- 10. On the periodic table, what are the columns called?
- 13. _________ are negatively charged
- 15. The name of the metals in the middle of the periodic table
- 18. _____ gasses are to the right of the “staircase”
- 19. The letter in the middle of element boxes represents the element ______
Down
- 1. What is an ion called if it’s positively charged?
- 2. The “principle energy number” is also known as the _________ number?
- 4. What is an ion called if it’s negatively charged?
- 5. protons and neutrons equal what?
- 6. __________ Table of the Elements
- 9. s, d, p, and f are all names for what?
- 11. The ______ rule says that all elements in order to become energetically stable, desire 8 valence electrons
- 12. _______ are positively charged
- 14. What does Co stand for?
- 16. The mass number found in element boxes is the _______ atomic mass
- 17. Na represents what element?