Crossword Puzzle

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Across
  1. 2. 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).
  2. 3. 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.
  3. 6. 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
  4. 8. measure of the amount of information on a storage medium (tape or disk)
  5. 10. 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.
  6. 12. positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.
  7. 15. firm and stable in shape; not liquid or fluid.
  8. 16. a part or aspect of something abstract
  9. 17. They are a source of nuclear energy
  10. 18. 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.
Down
  1. 1. of a positively charged nucleus with electrons revolving around it in any of many possible circular orbits each corresponding to a distinct energy state.
  2. 4. the Father of the Periodic Table.
  3. 5. any substance composed of identical molecules consisting of atoms of two or more chemical elements.
  4. 7. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
  5. 9. a coherent, typically large body of matter with no definite shape
  6. 11. 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 atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.
  7. 13. a substance that flows freely but is of constant volume, having a consistency like that of water or oil.
  8. 14. cloud - A group of electrons circulating around a nucleus or a molecule