Across
- 3. a vertical column in the periodic table
- 4. Breathe ! (3,5)
- 5. a molecule made of just two atoms
- 6. the state symbol for a substance dissolved in water
- 8. these metals sound like they are changing !
- 12. A substance containing only one type of atom.
- 13. This is simply Be !
- 14. an early model of an atom, where the atom was a ball and the electrons were embedded in it (4,7)
- 16. the sum of the protons and neutrons in a nucleus (4,6)
- 17. the reactivity of group 1 metals increases in this direction
- 18. Dimitri was the daddy of the periodic table
- 20. The bond between atoms when electrons are shared
Down
- 1. this mans not hot
- 2. group 7..thats all
- 7. An insoluble solid formed by the reaction of two solutions
- 9. liquids that do not mix..like oil and water !
- 10. a compound containing any group 7 element
- 11. When elements chemically bond together
- 15. When two or more atoms join together, can be same or different!
- 19. The electrostatic bond when electrons are transferred