Year 7 Chemistry

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