Ch. 2 Atoms and the Periodic Table

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Across
  1. 4. A tabular array of the chemical elements organized by atomic number
  2. 9. A column in the Periodic Table of Elements
  3. 13. Contains proteins that have been completely broken down into their simplest form
  4. 14. One of three Subatomic Particles. Has a positive electrical charge
  5. 16. Atoms with the same number of protons but different numbers of neutrons
  6. 17. Breaks the light from a single material into its component colors the way a prism splits white light into a rainbow
  7. 18. The number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place on the Periodic Table
  8. 19. The spectrum of frequencies of electromagnetic radiation emitted or absorbed during transitions of electrons between energy levels within an atom.
  9. 21. A substance that cannot be broken down into any other substance
  10. 22. A code to identify a specific element in the Periodic Table of Elements
  11. 23. A constructed copy of an object that is designed to represent that object
  12. 24. The smallest part of a substance that cannot be broken down chemically
  13. 25. The electrons encircle the nucleus of the atom in specific allowable paths called orbits
Down
  1. 1. The horizontal rows of the Periodic Table of Elements
  2. 2. The protons and neutrons
  3. 3. A very simplified representation of the valence shell electrons in a molecule
  4. 5. The central core of atoms, consisting of protons and neutrons tightly bound together by nuclear force
  5. 6. A model made of the composition of concepts
  6. 7. One of three subatomic particles that make up an atom
  7. 8. A collection of numbers that describe the location and energy of an electron in an atom
  8. 10. The smallest discrete unit of phenomenon
  9. 11. The total mass of an atom, essentially combined mass of its protons and neutrons
  10. 12. Any of the fundamental negatively charged particles in the outermost region of atoms that enters into the formation of chemical bonds
  11. 15. The region of space around the atomic nucleus upon which electrons may reside
  12. 20. One of three subatomic particles; with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids