Across
- 3. I am a member of the halogen family with an atomic number of 53.
- 4. I am a transition metal with 30 electrons useful in making paint.
- 6. I have 20 neutrons and am found in your teeth and bones.
- 9. I am a gas with 8 protons and 8 neutrons.
- 11. My atomic mass is 35.453.
- 13. I am a transition metal with 25 electrons
Down
- 1. I am a gas with a mass number of 19.
- 2. I am the first element in the fourth period used in making fertilizer.
- 5. My atomic number is 47 and I am used to make photographic film.
- 7. Group 1, period 3.
- 8. I am a noble gas with 2 electrons.
- 10. I am a metal with 28 electrons.
- 12. I am in the fifth period and same group as carbon.