Periodic Table Crossword

4. Metals get more reactive the more they go to the ____.
6. Developed the first periodic table, but didn't get credit due to incompleteness.
8. The least reactive Alkali metal.
9. Which nonmetal is the most reactive
11. This elements contain properties of both metals and nonmetals.
12. Metals become what?
13. Arranged elements in order of increasing atomic number.
15. Is Neon a nonmetal or metal.
19. What is the charge of Alkaline earth metals.
21. Which group is cerium in.
22. What are all actinides?
23. Apart of the Halogens group
24. Another name for the lanthanides.
26. Cobalt is in which group.
27. Valence electrons are the _________ electrons
28. Metals that are colorless, odorless, and tasteless.

1. Created the first periodic table.
2. What is the ionic charge of Gallium
3. The number of the charge depends on how many _______ electrons are lost or recieved.
5. The most reactive metals.
7. A metal in period 2.
9. Most reactive nonmetals.
10. Nonmetals are ____ conductors of heat and electricity.
11. which type of element is dense and has a high melting point.
14. Uranium is apart of which group.
16. Where do Transition metals come from?
17. Calcium is in which group.
18. A metalloid in period 13.
20. The number of dots is the same number of what?
25. Nonmetals become what?