Atom Word Search

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 2. State of matter that fills any space, like air (3)
  2. 4. Center of an atom or a cell (7)
  3. 9. An elementary particle with negative charge (8)
  4. 11. One of two or more atoms with the same atomic number but with different numbers of neutrons (7)
  5. 14. The order of an element in Mendeleyev's table of the elements (12)
  6. 15. The smallest component of an element having the chemical properties of the element (4)
  7. 16. A chemical ___ in which one atom loses an electron to form a positive ion and the other atom gains (9)

Down

  1. 1. How much matter something contains (4)
  2. 3. How tightly packed the matter in something is (7)
  3. 5. An abstract part of something (7)
  4. 6. A chemical ___ that involves sharing a pair of electrons between atoms in a molecule (12)
  5. 7. A substance consisting of two or more substances mixed together (7)
  6. 8. A fourth state of matter distinct from solid or liquid or gas and present in stars and fusion (6)
  7. 10. How loud something is, or how much space it fills (6)
  8. 12. A substance formed by chemical union of two or more elements or ingredients in definite proportion (8)
  9. 13. State of matter that flows like water (6)