Chemistry Crossword 2

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Across
  1. 1. The smallest particle of an element that retains the chemical properties of that element
  2. 2. Wave length symbol
  3. 4. An element that has some characteristics of metals and some characteristics of nonmetals
  4. 5. A particle of electromagnetic radiation having zero rest mass and carrying a quantum of energy.
  5. 7. The mass of one mole of a pure substance
  6. 10. A form of energy that exhibits wavelike behavior as it travels through space.
  7. 11. The distance between corresponding points on adjacent waves.
  8. 12. Refers to the emission of electrons from a metal when light shines on the metal.
  9. 13. An element that is a good conductor of heat and electricity​
  10. 16. A state in which an atom has a higher potential energy than it has in its ground state.
  11. 18. The minimum quantity of energy that can be lost or gained by an atom.
Down
  1. 1. The weighted average of the atomic masses of the naturally occurring isotopes of an element
  2. 3. Number of protons in a nucleus
  3. 6. The lowest energy state of an atom
  4. 8. Atoms of the same element that have different masses
  5. 9. Defined as the number of waves that pass a given point in a specific time, usually one second.
  6. 10. Together, all the forms of electromagnetic radiation form the ___________.
  7. 14. The amount of a substance that contains as many particles as there are atoms in exactly 12 g of carbon-12.
  8. 15. General term of any isotope of any element
  9. 17. The symbol of y