Across
- 1. The name of the element Ca
- 4. Electrons in the outermost shell
- 6. A diagram that only shows the valence electrons of an atom
- 8. An example of chemical _____________ is: CH4 or H2O
- 9. The energy levels around the nucleus that contains electrons
- 12. A positively charged particle in an atom
- 14. Subatomic particles with no change
- 16. Atomic number of Boron
- 17. The element Ar has ______ electrons
Down
- 2. 2, 8, 8 is an example of an electron __________
- 3. The part of an atom with an overall positive charge
- 5. A diagram that shows the electron configuration of atoms
- 7. Orbits around the atoms nucleus
- 10. An element with an electron configuration of 2, 8, 7
- 11. A chemical _____________ shows the products and reactants of a chemical reaction
- 13. The chemical symbol of Neon
- 15. The maximum number of electrons that fit into the first shell