PT Trends and E. Configurations
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Ability to attract electrons from atoms of another element | Electronegativity
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| The distance between the nuclei of 2 atoms the the same element | Atomic Size
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| The energy needed to remove electrons from atoms of an element | Ionization
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| Ions that have a positive charge & lose valence electrons | Cation
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| Ions that have a negative charge & gain valence electrons | Anions
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| The most electronegative element and has the highest ionization energy | F
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| The element with the largest atomic size | Fr
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| Says that electrons are placed in the lowest energy level first (s) | Aufbau's Principle
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| Says that electrons must have same spin until each orbital has 1 electron | Hund's Rule
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| Element that is the exception in Group 8A | Helium [He]
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| Trend for finding most electronegative element | Up and to the right
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| Trend for finding element with largest atomic size | Down and to the left
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| Only group that has a full s orbital and p orbital | 8A (Noble Gases)
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| block you must remember "Period minus 1" | d block
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| block that can only hold a max # of 2 valence electrons | s block
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| block that has a max # of 14 valence electrons | f block
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| block that has max # of of 6 valence electrons | p block
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| element that the 3 electron configuration rules work up to (and include) | V
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| element with the electron config. ending of 4s1 3d5 | Cr
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| element with the electron config. ending of 4s1 3d10 | Cu
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| principle energy levels are this | periods
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| number of valence electrons match this number | group number
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| electrons closest to the nucleus ; have lowest energy ; not in chemical bonding | core
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| outermost electrons ; highest energy ; used in chemical bonding | valence
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| trend for atomic numbers from left to right on P.T. | increases
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