Facts Flashcards
Is it easier to remove a higher or lower energy electron?
Higher energy
Is a more stable molecule high or low energy?
low
For Kinetic energy to increase…
wave curvature decreases, wavelength increases and number of nodes increases
For potential energy to increase…
electron distance increases, radius increases, and n (energy and size of wavelength increases.
When does screening increase?
as zeff and energy increase
if proximity to nucleus ______ then zeff increases and energy _____
increases, decreases
Rank orbitals s, p, d, f
S = good penetration, high zeff, low energy
P
D
F = Bad penetration, low zeff, high energy
Right and up the periodic table…
Small radius, orbital size decreases
High IE
High Zeff
High electronegativity
Favourable EA
Energy decreases
More stable
Left and down the periodic table…
Large radius, orbital size increases
Low IE
Low Zeff
Low electronegativity
Unfavourable EA
Energy increases
Less stable
As electronegativity increases…
% ionic character increases, bond strength and bond polarity increases
Lower energy =
stronger bond
More overlap =
stronger bonds
Polarity increases as….
Electronegativity and bond distance increase
% S-character increases as…
energy decreases, and bond strength increases
