Chemistry Crossword

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Across
  1. 4. a diagram used to show the energy of electrons within the sublevels of an atom or atoms when used in bonding
  2. 6. the distance between identical points, or adjacent crests, in the adjacent cycles of a waveform signal propagated in space or along a wire
  3. 7. a symbolic notation of the manner in which the electrons of its atoms are distributed over different atomic orbitals
  4. 8. an electromagnetic wave with a wavelength in the range 0.001–0.3 m, shorter than that of a normal radio wave but longer than those of infrared radiation
  5. 10. of light a fundamental physical constant that is the speed at which electromagnetic radiation travels in a vacuum and that has a value of 299,792,458 meters per second
  6. 12. electrons in the outermost shell of an atom
  7. 15. a letter or pair of letters used to represent a chemical element
  8. 17. a constant that gives the unvarying ratio of the energy of a quantum of radiation to its frequency and that has an exact value of 6.62607015 × 10−34 joule seconds
  9. 20. an uncharged atomic particle that has a mass nearly equal to that of the proton
  10. 21. diagram that describes the chemical bonding between atoms in a molecule
  11. 22. the rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light), usually measured per second
  12. 23. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
  13. 24. an electromagnetic wave of a frequency between about 104 and 1011 or 1012 Hz, as used for long-distance communication
  14. 25. a subatomic particle with a positive electrical charge
Down
  1. 1. an invisible ray that is part of the energy that comes from the sun
  2. 2. the smallest unit into which matter can be divided without the release of electrically charged particles
  3. 3. spectrum The complete range of all types of radiation that has both electric and magnetic fields and travels in waves
  4. 5. each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter
  5. 9. the quantity of matter contained in an atom of an element
  6. 11. a negatively charged subatomic particle that can be either bound to an atom or free
  7. 13. 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
  8. 14. the elemental symbol of the last noble gas prior to that atom, followed by the configuration of the remaining electrons
  9. 16. the maximum extent of a vibration or oscillation, measured from the position of equilibrium
  10. 18. A form of a chemical element in which the atoms have the same number of protons but with a different number of neutrons
  11. 19. the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization