Crossword Puzzle

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Across
  1. 3. stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
  2. 5. They are a source of nuclear energy
  3. 6. of a positively charged nucleus with electrons revolving around it in any of many possible circular orbits each corresponding to a distinct energy state.
  4. 9. positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.
  5. 10. a substance that flows freely but is of constant volume, having a consistency like that of water or oil.
  6. 12. mass-the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the
  7. 15. measure of the amount of information on a storage medium (tape or disk)
  8. 16. (the mass number) or to the average number allowing for the relative abundances of different isotopes.
  9. 17. firm and stable in shape; not liquid or fluid.
  10. 18. Table- a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns
  11. 19. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
Down
  1. 1. any substance composed of identical molecules consisting of atoms of two or more chemical elements.
  2. 2. number-the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
  3. 4. subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
  4. 7. a part or aspect of something abstract
  5. 8. cloud - A group of electrons circulating around a nucleus or a molecule
  6. 11. substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape (unlike a solid) and no fixed volume (unlike a liquid).
  7. 13. the Father of the Periodic Table.
  8. 14. a coherent, typically large body of matter with no definite shape