Atoms

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Across
  1. 2. atoms with different numbers of
  2. 5. and heavy like protons but have no charge.
  3. 8. used for things to be understood easily
  4. 9. mass-equal to the amount of protons and neutrons.
  5. 10. levels-any of the possible energies am electron may have in an atom.
Down
  1. 1. larger and heavier than electrons and they have a positive charge
  2. 3. very light particles and have a negative charge.
  3. 4. number- the number of protons located on the top left of any element on the periodic table
  4. 6. table-a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure
  5. 7. atom that carries an electrical charge