Atomic Structure and Periodic Table Vocab Study Guide

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Across
  1. 2. Vertical column of elements on the periodic table
  2. 4. Total number of protons and neutrons in the nucleus
  3. 6. Atom with a charge (has lost or gained electrons)
  4. 7. One of the first to organize the periodic table
  5. 10. 8 electrons in the valence shell
  6. 12. A negatively charged subatomic particle
  7. 13. Extremely reactive group of elements (one valence)
  8. 14. A positively charged subatomic particle
  9. 16. The number of protons in the nucleus of an atom of an element
  10. 18. Outer-most electrons (determine bonding and element characteristics)
  11. 19. Amount of energy needed to remove an electron from an atom
Down
  1. 1. Central core of an atom (houses protons and neutrons)
  2. 3. Horizontal row of elements on the periodic table
  3. 5. Group of nonreactive elements (have full valence shells)
  4. 8. The smallest particle of an element that retains its identity in a chemical reaction
  5. 9. ½ the distance between nuclei of two atoms
  6. 11. Atom’s ability to attract electrons
  7. 15. Atoms of the same element with different atomic masses due to different numbers of neutrons
  8. 17. Found in the nucleus of an atom. Has no net charge.