Across
- 4. Are the chemicals involved in the reaction
- 6. is a pure substance consisting only of atoms that all have the same numbers
- 7. Elements are arranged by order of their
- 10. Acids have a pH of less than
- 11. Bases have a pH great her than
- 12. Non metals have a what appearance
- 13. Chemicals produced by a reaction are
- 16. Unstable atoms of an element like uranium are called
- 17. a substance made of two or more elements is a
- 18. Acids can be found
- 19. when electrons are shared between two atoms we call it a what bond
Down
- 1. bases are used to
- 2. the force that pulls particles in the atom towards each other
- 3. bases turn red litmus paper
- 5. another name for metalloids are
- 8. bases taste
- 9. acids turn blue litmus paper
- 14. metalloids can be malleable ductile and
- 15. Acids taste
- 16. charged particle forms when an atom gain or loses electrons