2nd Exam

Question 1

principle QN

Answer 1

n, determines energy of the orbital

Question 2

orbital angular momentum QNs

Answer 2

l, magnitude ml, z component

Question 3

Spin QN

Answer 3

s, up or down, intrinsic angular momentum of a particle

Question 4

spin projection QN

Answer 4

ms,

Question 5

radial distribution function

Answer 5

probability of finding e in a volume element defined by the two walls (r and r+dr)

Question 6

fermion

Answer 6

particle coresponding to matter with a 1/2 integer spin (proton, nutron, electron)

Question 7

Boson

Answer 7

integer spin (photons) responsible for bonding fermions together

Question 8

Bohr radius

Answer 8

a

Question 9

wavenember

Answer 9

cm^-1

Question 10

atomic orbital

Answer 10

:

Question 11

pauli principle

Answer 11

when lables of 2 identical fermions are exchanged, the wavefunction must change sign

Question 12

Pauli exclusion principle

Answer 12

no more than 2 e’s in an orbital, if 2 are in orbital spins must be paired

Question 13

multiplicity

Answer 13

2S+1,

Question 14

Slader determinant

Answer 14

a systematic way to determine wavefunc for many e attoms in accordance with Pauli principle

Question 15

reduced mass

Answer 15

;

Question 16

nodal plane

Answer 16

plane where

Question 17

selection rule

Answer 17

restrictions

Question 18

effective nuclea charge

Answer 18

+

Question 19

Clebsch-Gordon series

Answer 19

S=s1+s2… s1-s2

Question 20

valence bond theory

Answer 20

valence e’s

Question 21

MO theory

Answer 21

orbitals

Question 22

sigma bonds

Answer 22

overlap

Question 23

pi bonds

Answer 23

overlap

Question 24

promotion

Answer 24

e ‘excited’ or promoted to higher energ state

Question 25

hybrid orbitals

Answer 25

combination of orbitals