Across
- 1. the positive atom in the nucleus
- 3. the vertical sections on the periodic table
- 4. the same element bonded together
- 8. the negative atom that's around the nucleus
- 9. made up of atoms
- 10. the number of protons in the nucleus of the atom
Down
- 1. where all of the elements are placed
- 2. more than one element bonded together
- 5. the neutral atom that's in the nucleus
- 6. the horizontal groups on the periodic table of elements
- 7. structure of matter