Across
- 1. transition metal and 30 electrons
- 5. 61 neutrons and 47 electrons
- 6. element symbol Mo
- 9. 86 Protons and 136 neutrons
- 10. Atomic number 22
- 12. 7 protons and 7 electrons
- 13. 31 protons and a Metalloid
Down
- 2. 64 neutrons and 48 electrons
- 3. period 1 group 1
- 4. Has 29 protons and is a transition metal.
- 7. atomic mass 16
- 8. Metalloid and 5 protons
- 9. Has 37 electrons and has 48 neutrons
- 11. A noble gas, In period 2