Science chemistry vocabulary crossword

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Across
  1. 1. a basic part of a whole.
  2. 5. an element with the atomic number of four and is a metal.
  3. 7. cloud the system of electrons surrounding the nucleus of an atom.
  4. 9. an element or substance that is not a metal
  5. 12. an element with the atomic number of eighty-eight and is a metal.
  6. 13. charge a charge that exists in a body that has fewer electrons than protons.
  7. 15. a subatomic particle found in the nucleus of every atom.
  8. 17. a column in the periodic table of the chemical elements.
  9. 18. the basic unit of a chemical element.
  10. 19. mass the quantity of matter contained in an atom of an element.
  11. 20. electrons the electrons in the outermost shell, or energy level, of an atom.
Down
  1. 2. levels the fixed distances of electrons from the nucleus of an atom.
  2. 3. an element with the atomic number of twenty and is a metal.
  3. 4. a subatomic particle found in the nucleus of every atom except that of simple hydrogen.
  4. 6. the horizontal rows of the periodic table.
  5. 8. charge a charge that has a greater number of electrons than protons.
  6. 10. a negatively charged subatomic particle.
  7. 11. the structure in a cell that contains the chromosomes.
  8. 14. table organizes all discovered chemical elements in rows and columns according to increasing atomic number.
  9. 16. charge the total electric charge of the atom is therefore zero.
  10. 18. number the number of a chemical element in the periodic system.