Bridging Course 5

Question 1

the relationship between wavelength and frequency

Answer 1

c = λ ν

Question 2

the value of c

Answer 2

3 x 10^8 m s-1

Question 3

Planck’s equation - Light as a wave phenomenon (formula)

Answer 3

E=hc/λ

Question 4

Planck’s equation - Light as a stream of photons

Answer 4

E=hv

Question 5

Planck’s constant

Answer 5

6.626 x 10^-34 J.s/particle

Question 6

photoelectric effect (formula)

Answer 6

Einc = Φ + KE
Einc = hv0 +1/2mv^2

Question 7

Rydberg formula

Answer 7

1/λ=RH (1/n1^2-1/n2^2)

Question 8

Rydberg constant

Answer 8

1.0973 x 10^7 m-1

Question 9

transitions from higher energy levels to n=1

Answer 9

Lyman Series

Question 10

transitions from higher energy levels to n=2

Answer 10

Balmer Series

Question 11

transitions from higher energy levels to n=3

Answer 11

Paschen Series

Question 12

transitions from higher energy levels to n=4

Answer 12

Brackett Series

Question 13

transitions from higher energy levels to n=5

Answer 13

Pfund Series

Question 14

transitions from higher energy levels to n=6

Answer 14

Humphreys

Question 15

equation to compute the energy levels available to the electron in the hydrogen atom (in joules).

Answer 15

E = - [(2.178 x 10^-18)/(n^2)] J

Question 16

equation to compute the energy levels available to the electron in the hydrogen atom (in eV).

Answer 16

E = - (13.6/n^2) eV

Question 17

De Broglie formula

Answer 17

λ=h/mv

Question 18

allowed values for n

Answer 18

n = 1, 2, 3, …

Question 19

allowed values for l

Answer 19

l=0 to n-1

Question 20

allowed values for ml (magnetic quantum number)

Answer 20

ml = -l to l

Question 21

allowed values for ms (spin quantum number)

Answer 21

ms = -1/2, 1/2

Question 22

maximum number of orbitals in a subshell

Answer 22

2l + 1

Question 23

maximum number of orbitals in a shell

Answer 23

n^2

Question 24

maximum number of electrons in a subshell

Answer 24

2(2l+1)

Question 25

maximum number of electrons in a shell

Answer 25

2n^2

Question 26

number of angular nodes

Answer 26

l

Question 27

number of radial nodes

Answer 27

n-1-l

Question 28

total number of nodes

Answer 28

n-1

Question 29

selection rules for the allowed transitions

Answer 29

Δl = +- 1
Δml = 0, +- 1