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Chem Final Review

TermDefinition
Atomic Radius The distance from the nucleus of an atom to the outermost electron (essentially the “size” of the atom). Trend: Decreases across and up
Electronegativity The ability of an atom to attract electrons in a chemical bond. Trend: Increases across and up
Electron Affinity The energy change when an atom gains an electron (usually in gas phase). Trend: Across and up is negative (more negative means more likely to gain)
First Ionization Energy Energy needed to remove the first (outermost) electron from a neutral atom. Trend: Across increases and up increases
Second Ionization Energy Energy needed to remove the second electron from a +1 ion. Always higher than First
n Main energy level/ shell of an electron
l Shape of the orbital
m1 Orientation of the orbital in space
ms Spin
E=hc/λ (6.626 x 10 ^34)( 3.00 x10 ^8)// m
Created by: user-1991794
 

 



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