2.2 Electron configuration

Question 1

what is the formula relating velocity, wavelength and frequency?

Answer 1

c = v λ
c: velocity
v: frequency
λ: wavelength

Question 2

what are the 7 different types of electromagnetic radiation, ranked from lowest to highest frequency?

Answer 2

Red Martians Invaded Venus Using X-ray Guns
- Radio waves
- Micro waves
- Infrared red radiation
- Visible light
- Ultraviolet light
- X - ray
- Gamma ray

Question 3

what are the 7 different colours of visible light?

Answer 3

the rainbow
- red
- orange
- yellow
- green
- blue
- indigo
- violet

Question 4

why does convergence occur?

Answer 4

it occurs because an atom’s outer energy level are closer together the higher they are

Question 5

how many electrons does each energy level hold?

Answer 5

2n^2

Question 6

what are the 4 orbitals?

Answer 6

s, p, d and f

Question 7

which groups have s orbital?

Answer 7

group 1, group 2 and helium

Question 8

which groups have p orbitals?

Answer 8

group 13 -18 without helium

Question 9

which groups have d - orbital?

Answer 9

group 3 - 12

Question 10

which groups have f - orbitals?

Answer 10

lanthanides and actinides

Question 11

explain the aufbau principle

Answer 11

lowest energy orbitals are filled first!!

Question 12

explain hund’s rule

Answer 12

all sub-orbital are filled with one electrons first

Question 13

explain the pauli exclusion principle

Answer 13

orbitals contain a maximum of 2 electrons that have opposite spins

Question 14

which 2 d-block elements do not contain a full 4s sub shell?

Answer 14

copper and chromium

Question 15

what is the condensed electron configuration of copper?

Answer 15

[Ar] 4s^1 3d^10

Question 16

what is the condensed electronic configuration of chromium?

Answer 16

[Ar] 4s^1 3d^5

Question 17

… is a form of energy that travels as a wave

Answer 17

electromagnetic radiation

Question 18

radio, microwave, infrared, visible light, ultraviolet, x-ray and gamma radiation is the highest to lowest order of …

Answer 18

wavelengths

Question 19

gamma radiation, x-ray, ultraviolet, visible light, infrared, microwave and radio is the highest to lowest order of…

Answer 19

frequency and energy

Question 20

a … of electromagnetic radiation shows all possible wavelengths

Answer 20

continuous spectrum

Question 21

a … of electromagnetic radiation shows only particular wavelengths

Answer 21

line spectrum

Question 22

an … is a line spectrum describing the photons an atom emits when electrons drop energy levels and release energy

Answer 22

emission spectrum

Question 23

… is an emission spectrum’s feature where lines are closer together at higher wavelengths

Answer 23

convergence

Question 24

which emission series emits ultraviolet light from which energy level?

Answer 24

lyman series
from the 1st energy level (n = 1)

Question 25

which emission series emits visible light from which energy level?

Answer 25

balmer series
from the 2nd energy level (n = 2)

Question 26

an … is a region of space where there is a high probability of finding an electron

Answer 26

orbital

Question 27

an atom’s … is an expression describing the filled orbitals

Answer 27

electron configuration