Physical and chemical changes

Edit Answers
12345678910
Across
  1. 3. number of atoms in a molecule.
  2. 4. a substance formed when two or more elements combine
  3. 5. a major element in tooth and bone.
  4. 6. smallest part of an element that can exist by itself.
  5. 7. combining capacity of an element.
  6. 9. the most abundant element in the universe.
Down
  1. 1. the third most abundant element in the earth's crust.
  2. 2. Mn is chemical symbol of
  3. 4. abbreviated derived from the name of element.
  4. 8. fundamental units of all matters.
  5. 10. the smallest particle of an element.