Across
- 2. One valence electron and 2 orbitals.
- 8. A gas that makes up most of the air we breathe, with 5 outer electrons
- 9. Element commonly associated with a terrible smell.
- 11. Most massive element in our selection.
- 13. neutral charge and a mass of 12.01
- 15. The most electronegative element.
- 16. Only element touching the stair-step line that is not a metalloid.
- 17. This metal has a higher ionization energy than sodium, due to one more proton.
Down
- 1. A soft metal that reacts quickly with water, and often forms part of table salt.
- 3. This element has 1 valence electron and one proton.
- 4. A key element in DNA
- 5. It has 4 valence electrons, and a neutral mass of 28.
- 6. Two valence electrons and 2 orbitals.
- 7. Prevalent chemical in swimming pools
- 8. A colorless, inert gas in light up signs.
- 10. A gas we breathe, usually gains 2 electrons in reactions.
- 12. This element has no charge and the highest ionization energy.
- 14. 5 protons and part of the boron family