Wave & Light
A wavelength increases, ___________ decreases.
Frequency
What are the rules for ml quantum number?
ml must be any number between -l and +l
Which elements in a period in the periodic table have the highest ionization energy?
Noble Gases
What is the equation that relates energy and frequency?
What is Hund's Rule?
Rule stating electrons occupy orbitals singly before pairing.
Which element has a larger radius: Na or Cl?
Na
If ΔE is negative, is energy emitted or absorbed?
Emitted
What is the Aufbau Principle?
Rule stating electrons fill lowest energy first.
Which experiences greater Zeff: Na or Cl? Why?
Cl, it has more protons with the same amount of shielding.
What is the wavelength (in nm) of radiation that has a frequency of 5.50 x 1014 s-1?
545 nm
What is the electron configuration of Na+ ?
1s² 2s² 2p⁶
What is electron affinity, and which element has the more negative affinity: Br or Se?
Electron Affinity: The energy change when an electron is added to an atom. It measures the attraction/affinity of the atom for the electron.
Br
What is the wavelength of an emitted photon for transition from n=3 to n=2?
656 nm
What does it mean for an atom to be isoelectronic with another? Bonus 50 points if you can name an example.
They must have the same number of electrons.
Put the following atoms in order of increasing size (smallest to largest). Ne, I, Br, F, Cl
Ne < F < Cl < Br < I