Year 7 Chemistry
Across
- 1. the central part of an atom, made up of protons in neutrons.
- 5. is a mixture of protons neutrons and electrons
- 7. a group of atoms bonded together
- 12. something that is luster, semi conductive, not ductile, not malleable and not durable.
- 14. number number of protons in the nucleus of an atom. The atomic number determines which element an atom is.
- 15. something that is luster, malleable, conductive, solid and ductile
- 17. tiny, but heavy, positively charged particles found in the nucleus of an atom
- 18. Shiny
Down
- 2. of electricity conducts electricity
- 3. tiny, but heavy, particle found in the nucleus of an atom. Neutrons have no electrical charge.
- 4. metal something that is brittle, gaseous, not malleable, not ductile and not conductive
- 6. a result of combining two more substances without participating in a chemical charge
- 8. very light, negatively charged particles found inside an atom. Electrons move around the central nucleus of an atom.
- 9. chemical substances made up of two or more elements that are chemically bound together in a fixed ratio
- 10. bendy
- 11. test is there any put a naked flame on a gas
- 13. can be made to wire
- 15. number the total number of protons and neutrons combined together
- 16. is the smallest unit of ordinary matter that forms a chemical element