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