Chapter 5_6 chem vocab.txt

  1. Atomic orbital
    A mathematucal expression describing the probabilty of finding an electron at various locations
  2. Aufbau principle
    The rule that electrons occupy the orbitals of lowest energy first
  3. Electron connfiguration
    The arrangement of the elctrons of an atom in its ground state into various orbitals around the nucle of atoms
  4. Energy level
    The apecific engeries an electorn in an atom or other system can have
  5. Hunds rule
    Electrons occupy orbitals of the same energy in a way that makes the number or electrons with the same spin direction as large as possible
  6. Pauli exclusion principle
    An atomic orbital may describe at most two electron, each with opposite spin direction
  7. Quantum
    The amount of energy needed to move an electron from one energy level to another
  8. Quantum mechanical model
    The modorn description, primarily mathematical, of behavior of electrons in atoms
  9. Alkali metals
    Any metals in group 1A of the perodic table
  10. Alkali earth metals
    And metal in group 2A of the perodic table
  11. Anion
    Any atom or group of atoms with a negative charge
  12. Atomic radius
    One half the distance between the nuclei of two atoms of the same element when the atoms are joined
  13. Cation
    Any atom or group of atoms with a posotive charge
  14. Electronegativity
    The ability of an atom to attract electrons when the atom is in a compound
  15. Halogen
    A nonmetal in group 7A of the periodic table
  16. Inner transition metal
    An element in the lantharide pr actiride series; the highest occupies "s" sublevel and nearby "f" sublevel of its atoms generally contain electrons
  17. Ion
    An atom or group of atoms that has a positive or negative charge
  18. Ionzatiob energy
    The energy required to remove an electron from an atom in its gaseous state
  19. Metaloid
    An element that tends to have the propeeites that are similar to those of metals and nonmetals
  20. Metals
    One of a class of elements that are good conducts of heat and electric current. Metals tend to be ductile, malleable and shiny
  21. Noble gases
    An element of group 8A of the perodic table. Stable elements
  22. Nonmetals
    An element that tends to be a poor conductor of heat and electric current; opposite of metals for the most part
  23. Periodic law
    When the elements are arranged in increasing atomic number. A repetition of their physical and chemical properites
  24. Representive elements
    An element of group "A" in the perodic table
  25. Transition metal
    One of the group "B" elements in which the highest occupied "s" sublevels and nearby "d" sublevel generally contain electrons
Card Set
Chapter 5_6 chem vocab.txt