Across
- 1. A vertical column of elements is called a __ or a family.
- 4. __ has the most amount of protons in the periodic table.
- 5. Atomic number of 1.
- 7. Created the first periodic table.
- 10. Each element has a unique atomic number which is the amount of __ in the nucleus.
- 12. What makes the periodic table really invaulable is its use as a __ tool.
- 13. Circles around the atom and has no charge.
- 15. The __is the most powerful tool chemists have for organizing chemical information.
- 16. The most radioactive atom.
Down
- 2. Deadliest element
- 3. Cant mix with anything else.
- 6. The latest element to be discovered.
- 8. The amount of __ in a element is equal to the amount of protons in a element
- 9. Atoms on the periodic table are listed by__.
- 11. The first element to be discovered.
- 14. The 7 horizontal rows are called __.
