Chemistry Crossword

5. Top group of the 2 that is usually under and do not fit into the Periodic Table.
7. Total number of protons + neutrons.
8. Do not add mass to the atom
10. Will never change, because it will become a different element.
11. Has Calcium and Barium.
13. The letters of the elements.
15. the guy who made the periodic table
18. thing that holds all of the elements

1. Atoms will always react until they have a full shell.
2. Add mass to the atom.
3. The bottom group of the 2 that is usually under, and do not fit into, the Periodic Table.
4. an element with an electric charge formed formed loss or gain in electrons.
6. Most reactive.
9. the study of the elements
10. The group to the right of the Transition Metals and to the left of the Metallloids.
12. Has Hydrogen and Carbon in it.
14. Most reactive non-metals.
15. The elements on the stair line.
16. Do not react at all.
17. Tells the number of protons.