Periodic Table

4. Extremely soft metals
8. This element is in the halogens group
11. Ion with a +1 charge
13. Ionic charge
16. Nonmetals become ___ ions; called anions
17. Metals become ____ ions; called cations
18. This element is in the noble gases group
19. This element is in the alkaline earth metals group
21. a very simplified representation of the valence shell electrons in a molecule.
23. Most reactive nonmetals
24. This element is in the alkali metals group
25. The number of the charge depends on how many ___
26. also known as "rare earth metals"
28. the periodic table is organized into ___

1. The electrons in the outermost shell, or energy level, of an atom.
2. alkali metals react with ___ to make strong bases
3. Better conductor than nonmetals but not metals
5. This element is in the halogens group
6. Type of metals that oxidize in air
7. Non Metals are very ___
9. Hydrogen charge
10. the graph the elements are organized on
12. type of metals that are the best conductors of heat and electricity
14. react violently with the most nonmetals
15. Who created the first periodic Table
20. Matals are good ____ of heat and electricity
22. Have characteristics colors when excited
27. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.