Types of Substances: Elements, Compounds and Mixtures

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Across
  1. 3. a particle which two or more atoms of the same non-metal element are chemically bonded together
  2. 5. Pure substance made of only one type of atom
  3. 8. Collection of symbols and numbers that represents the number of atoms in a practise of an element or copound
  4. 9. Both a philosophy and ancient practise of science
  5. 10. pure substance made up of two or more differnt atoms chemically bonded together
  6. 11. a column down the periodic table
Down
  1. 1. Substance made of the same types of particles
  2. 2. a particle which two or more atoms of different non-metal elements are bonded together
  3. 3. Substance made of different types of particle, physically combined
  4. 4. A letter (or letters) of the alphabet used to represent an atom of a specifc chemical element
  5. 6. a rrow across the periodic table
  6. 7. a molecule consisting of two atoms('di-' meaning 'two'; 'atomic' meaning 'atom')