Periodic table crossword

123456789101112131415161718192021222324
Across
  1. 1. the speed of light
  2. 2. one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table
  3. 3. a component of an atomic nucleus with a mass defined as 1 and a charge of +1
  4. 5. Properties a characteristic of a substance that can be observed or measured without changing the identity of the substance
  5. 7. that lacks the characteristics of a metal
  6. 10. the number of waves that pass a certain point in a specified amount of time
  7. 11. mass the quantity of matter contained in an atom of an element
  8. 12. the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire
  9. 13. Configuration the arrangement of electrons in energy levels around an atomic nucleus
  10. 14. number number of units in one mole of any substance (defined as its molecular weight in grams)
  11. 15. smallest unit into which matter can be divided without the release of electrically charged particles
  12. 17. energy the amount of energy required to remove an electron from an isolated atom or molecule
  13. 19. a collection of particles called protons are positively charged, and neutrons, which are electrically neutral
  14. 22. a mathematically described region around a nucleus in an atom or molecule that may contain zero, one, or two electrons
  15. 23. create a negative charge that balances the positive charge of the protons in the atomic nucleus.
  16. 24. number the smallest unit into which matter can be divided without the release of electrically charged particles
Down
  1. 1. of Mass in a chemical reaction mass is neither created nor destroyed
  2. 4. Properties a characteristic of a substance that may be observed when it participates in a chemical reaction
  3. 6. Radiation an electric and magnetic disturbance traveling through space at the speed of light
  4. 8. any of class of substances characterized by high electrical and thermal conductivity as well as by malleability, ductility, and high reflectivity of light
  5. 9. any substance composed of identical molecules consisting of atoms of two or more chemical elements
  6. 14. atom or group of atoms carrying a negative electric charge
  7. 16. a very important unit use of measurement that chemists use
  8. 18. neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen
  9. 20. atom or group of atoms that bears a positive electric charge
  10. 21. any substance that cannot be decomposed into simpler substances by ordinary chemical processes