Final

Question 1

What length wavelength indicates a higher energy electron was excited?

Answer 1

Shorter wavelength

Question 2

What is a radial/spherical node?

Answer 2

Nodes that are spherical that electrons cannot enter

Question 3

What type of node is spherical?

Answer 3

Radial/spherical

Question 4

What orbital are radial nodes associated with?

Answer 4

s orbital

Question 5

What is the equation to find the number of radial nodes?

Answer 5

n - 1 - L

Question 6

What is an angular/planar node?

Answer 6

A single plane that electrons cannot cross

Question 7

What type of node is a singular plane that electrons cannot cross?

Answer 7

Angular/planar

Question 8

What is the equation to find # angular nodes?

Answer 8

L or abolsute value of m

Question 9

What is a conical node?

Answer 9

Two cones in the d-orbital

Question 10

What is the node that is associated with a d-orbital?

Answer 10

Conical

Question 11

What is the equation to find # conical nodes?

Answer 11

L - |m|

Question 12

What orbital are angular nodes associated with?

Answer 12

P-orbital

Question 13

What is the equation for total nodes?

Answer 13

n - 1

Question 14

What is the n quantum number mean?

Answer 14

Number of orbitals, labels them as shells

Question 15

What does the L quantum number mean?

Answer 15

Angular momentum quantity, describes shape of orbitals

Question 16

Equation to find L-orbital

Answer 16

N-1

Question 17

What is the m quantum number?

Answer 17

Magnetic quantum number

Question 18

How do you find m numbers?

Answer 18

Every value of L, + and - and zero, 2L+1

Question 19

What is the s quantum number?

Answer 19

Spin of electron, +1/2 is spin up and -1/2 is spin down

Question 20

What quantum number do energy depend on?

Answer 20

N and L values, lower n is lower energy

Question 21

What is paramagnetic and diamagnetic?

Answer 21

Paramagnetic means unpaired electron exists

Question 22

What equation approximates the energy?

Answer 22

N+L

Question 23

Description of sigma bond (5 points)

Answer 23

S orbital, single bond, largest energy gap, no node, will switch with pi if hybridization

Question 24

Description of pi bond (5 points)

Answer 24

P orbital, double bond, second largest energy gap, one node, will switch with sigma if hybridization

Question 25

Description of delta bond (3 points)

Answer 25

D orbital, smallest energy gap, two nodes

Question 26

What is the exception for MO energy diagram?

Answer 26

Hybridization of homo nuclear molecule, sigma and pi get switched

Question 27

Which elements hybridize?

Answer 27

Elements B-N, O and F included in big molecules

Question 28

MO energy gap trends

Answer 28

Gap gets smaller across period

Question 29

How is lone pair energy order decided in MO diagram

Answer 29

Heaviest nuclei have lower energy

Question 30

What decides order of pi bonds on MO

Answer 30

Most electronegative are lower

Question 31

Hund’s rule

Answer 31

Every orbital gets one electron in a shell before doubling Up

Question 32

Aufbau

Answer 32

Order which electrons fill shells

Question 33

Pauli-exclusion

Answer 33

2 electrons can’t have same quantum numbers associated with them

Question 34

Pauli EN scale

Answer 34

Scale that electronegativity of atoms are based on

Question 35

picometers

Answer 35

10-12

Question 36

nanometers

Answer 36

10-9

Question 37

micrometers

Answer 37

10-7

Question 38

angstrom

Answer 38

10-10

Question 39

What is the bond order equation?

Answer 39

(electrons in bonds-electrons in antibonds)/2

Question 40

What is the formal charge equation?

Answer 40

#valence electrons - (#lone pairs+bonds)

Question 41

What is the correlation of bond order and strength?

Answer 41

The higher the bond order the stronger the bond

Question 42

VESPR: what is the tetrahedral bond angles?

Answer 42

109.5

Question 43

VESPR: What is the bond angles for trigonal pyramidal?

Answer 43

107

Question 44

VESPR: What are the bond angles for trigonal planar?

Answer 44

120

Question 45

VESPR: What are the bond angles for bent?

Answer 45

90

Question 46

VESPR: What is the bond angle for linear?

Answer 46

180

Question 47

Which VESPR molecular shapes have line pairs?

Answer 47

Bent, Trigonal Pryamidal