Across
- 1. Highest energy
- 4. relatively soft
- 8. wrote a textbook that included an abbreviated version of a periodic table that contained 28 elements.
- 9. metals become _____ ions
- 10. Colorless, odorless, tasteless
- 11. Nonmetals ____ ions
- 14. shiny
- 15. actinides
- 17. Grouped into a row not a column
- 20. halogens have ___ electronegativity
- 23. Found in earths crust
- 26. Valence electrons are __?
- 27. was the first person who developed a periodic table by increasing atomic mass
- 28. Nonmetals
Down
- 2. halogens
- 3. this element is in the halogens group.
- 5. metals ___ ions
- 6. provide a way to visualize an atom’s structure and potential to bond
- 7. Dull
- 8. Credited for the first periodic table.
- 12. also known as "rare earth metals"
- 13. When metals and nonmetals chemically bond together, ions are formed from a transfer of electrons.
- 16. Transition metals
- 18. silvery gray
- 19. can contain properties of metals and nonmetals
- 21. Noble Gases
- 22. alkaline earth metals
- 24. most reactive nonmetals
- 25. Lanthanides