CHEM 105 Chapter 2 Quiz Flashcards
speed of light
3.00 x 10^8 m/s
frequency (v) equation
v = c / λ
unit for frequency
Hz or cycles/second (1 Hz = 1 s^-1)
Energy equations
E = hv E = hc / λ
Planck’s Constant (h)
6.626 x 10^-34 J*s
phi represents the
binding enegy
Kinetic Energy =
Ephoton - Ebinding or hv - phi
wavelength equals
h / mv
Heisenberg Uncertainty Principle
delta x * m delta v > h / 4pi
Schrodinger’s Equation
Hψ = Eψ
? quantum number n represents ?
principal; the energy level
values of n can be any whole number integer ?
greater than or equal to 1
Energy of n =
-2.18 x 10^-18 J (1/n^2)
? quantum number l is also known as the ?
angular momentum; the orbital quantum number
l can have integer values from ? to ?
0 to (n-1)
l = 0 l = 1 l = 2 l = 3
s-orbital
p-orbital
d-orbital
f-orbital
? quantum number m sub l AKA the ?
magnetic; the position or orientation quantum number
values for m sub l range from ? to ?
-l to +l including zero (number of integers is the number of orbitals, e.g. -2, -1, 0, 1, 2 has 5 orbitals)
? quantum number, m sub s
spin quantum number
m sub s equals
+/- (1/2)
positive - spin up
negative - spin down
the number of sublevels within a level
n
the number of orbitals within a sublevel
2l+1
number of orbitals in a level
n^2
the change in energy of an electron = the energy of the final state minus the energy of the initial state
mathematically…
-2.18x10^-18 J [(1 / (n final)^2) - (1 / (n initial)^2)]
probability density
ψ^2
