iClicker Session Topic 9, 10 Flashcards
Electron absorbtion moves from lower energy to higher level or higher energy level to lower.
Lower to higher.
The higher the wavelength what happens to the level of energy?
The lower the energy. E=hc / lambda
How do you calculate wavelength if mass and velocity are given?
Lambda = h / mv, where m is mass in kg, v is velocity, h is planck’s constant.
What orbital do you have when l = 0
S orbital and as l goes up, the orbital goes up. e.g. 1 = p, 2 = d, 3 = f, 4 = 5.
If n = 4 what can l equal?
l can equal an integer -1 which would be 3, 2, 1, 0.
If l = 3 what can ml =?
2, 1, 0, -1, -2
True or false. An atom can have a configuration above it’s place in the periodic table.
False.
How do you calculate formal charge?
Valence electrons minus electrons in structure.
If you have two lewis structures with the same formal charge how do you determine which one is more stable?
You choose the structure that has the more negative charge on the more electronegative atom.
0 charges of atoms are included or not included in the formal charge of the molecule.
Not included.
How do you calculate bond order?
Number of bonds / Number of Bond Groups
Energy of light equation is what?
=hv=hc/lambda, h equals plancks constant, v equal frequency.
Wavelength of a photon equation equals..
hc/absolute value of change in energy
Energy of a photon =
= hc/lambda
Energy =
hv
