Chemistry Vocabulary

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Across
  1. 4. Substances that react.
  2. 6. Can be hammered.
  3. 7. Spreading of particles throughout a given volume until they are distributed.
  4. 9. if all the atoms in a substance has the same identity it becomes {blank}.
  5. 10. Flexible.
  6. 11. A substance in which the atoms of 2 or more elements are combined.
  7. 12. The vertical columns in the periodic table.
  8. 14. This number is the sum of the number of protons and neutrons.
  9. 15. Area around a nucleus where electrons are mostly found.
  10. 16. Homogeneous mixture with particles so small that they cannot be seen with a microscope.
Down
  1. 1. Substances that are made.
  2. 2. Atoms of the same element that have different numbers of neutrons.
  3. 3. Numbers in front of each substance in a equation.
  4. 5. Good conductors of heat and electricity.
  5. 8. Particles in a atom with no charge.
  6. 13. Particles in a atom with a positive charge.
  7. 14. A neutral molecule that forms as a result of electron sharing.