chemistry crossword

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Across
  1. 3. electron:that is associated with an atom,
  2. 5. basic unit of a chemical element.
  3. 6. charge:hat has lost one or more electrons,
  4. 7. cloud: It is used to describe where electrons are when they go around the nucleus of an atom.
  5. 9. level:the fixed amount of energy that a system
  6. 12. state or power of being reactive or the degree to which a thing is reactive.
  7. 13. number:the total number of protons and neutrons in a nucleus.
  8. 14. nucleus:The nucleus is the small, dense region consisting of protons and neutrons at the center of an atom
Down
  1. 1. with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
  2. 2. subatomic particle of about the same mass as a proton but without an electric charge,
  3. 4. found in all atoms and acting as the primary carrier of electricity in solids.
  4. 8. table:a table of the chemical elements arranged in order of atomic number,
  5. 10. charge:the atom must have an equal number of protons and electrons.
  6. 11. charge:hen that object contains more electrons than protons.