Chemistry

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Across
  1. 2. A set of chemical symbols showing the elements present in a compound and their relative proportions.
  2. 4. A substance that forms when atoms share electrons.
  3. 5. Anything that has mass and takes up space.
  4. 7. The number represents the number of proton in an atom.
  5. 10. The central core of an atom, consisting of protons and neutrons.
  6. 11. The science that deals with the composition, properties, reactions, and the structure of matter.
  7. 12. A subatomic particle that has a positive charge.
  8. 13. A type of bond that forms when electrons are transferred from one atom to another.
Down
  1. 1. A number that shows how many atoms are in a compound.
  2. 3. A subatomic particle that has a negative charge.
  3. 6. A pure substance made up of only one kind of atom.
  4. 7. The smallest basic unit of matter.
  5. 8. table An organized arrangement of elements according to their atomic number.
  6. 9. The number of protons and neutrons in the atom
  7. 11. Pure substances made of two or more kinds of atoms bound together.