Across
- 2. a nonmetal with a atomic number of 6 (LW)
- 3. Outer edge electron (JW)
- 7. All atoms are this, variations of an element (MO)
- 9. An element named after the creator of what we know as the Periodic Table.
- 12. are atoms of the same element with a different number of neutrons. (AC)
- 13. A pure substance that cannot be separated. (ET)
- 14. A range of stuff. (GM)
- 15. Atoms with the same number of protons but different numbers of neutrons. Carbon - 12 is the most common one of these for carbon.(GMM)
Down
- 1. A subatomic particle with a positive charge found in the nucleus of an atom. (SA)
- 4. total mass of particles of matter in an atom (MH)
- 5. The type of electron that exists in the outermost shell of an atom (LS)
- 6. The number of protons plus the average number of neutrons. (GF)
- 8. A compound formed by the reaction of a acid and a base resulting in a neutral compound. (VJ)
- 10. an element named after the creator of the periodic table. OA
- 11. An atom with a positive or negative charge.(MD)
