Atomic Structure - Electron Configuration (NEEDS WRITTEN)

Question 1

What is used to represent atomic orbitals?

Answer 1

Boxes

Question 2

How many boxes represent s orbitals?

Answer 2

1

🔲

Question 3

How many boxes represent p orbitals?

Answer 3

3

🔲🔲🔲

Question 4

How many boxes represent d orbitals?

Answer 4

5

🔲🔲🔲🔲🔲

Question 5

How many electrons does each orbital contain?

Answer 5

Up to 2 electrons

Question 6

What charge do electrons carry?

Answer 6

A negative charge

Question 7

What do the 2 negative electron changes do to each other?

Answer 7

Repel each other

Question 8

What intrinsic property do electrons have?

Answer 8

Spin

Question 9

What direction can the spin of an electron be?

Answer 9

Up or down

Question 10

What must the spin of 2 electrons in the same orbital be?

Why?

Answer 10

Must be opposite

To minimise the repulsion

Question 11

What is the order of orbital energy levels from low to high?

Answer 11

S
P
D
F

Question 12

What does the energy level mean in relation to how close it is to the nucleus?

Answer 12

The lower the energy level, the closer it is to the nucleus

Question 13

What are shells and sub-shells of electrons filled according to?

Answer 13

A set of rules - Aufbau Principles

Question 14

What are the rules of Aufbau Principles?

2

Answer 14

Electrons are added one by one

The lowest available energy level is filled first

Question 15

Aufbau Principles

Explain in more detail: (how does it happen?)

Electrons are added one by one
(2)

Answer 15

Initially, each orbital within a sub shell is filled with a single electron

Then electrons are paired

Question 16

Aufbau Principles

Explain in more detail: (how does it happen?)

The lowest available energy level is filled first

(2)

Answer 16

Once a level is full, the next higher level be filled

4s orbital is at a lower energy level than 3d
so 4s orbital fills first

Question 17

What is ‘last in, first out’ ?

Answer 17

Electrons in the highest energy level are the first to be lost

Question 18

What is electron configuration?

Answer 18

The arrangement of electrons in an atom or ion

Question 19

How can we represent the electronic configuration?

Answer 19

Half arrows in different directions in the boxes

Specific notation

Question 20

What is the specific notation for electron configuration?

Answer 20

nx*y

Question 21

specific notation
nx*y

What does n represent?

Answer 21

Shell number

Question 22

specific notation
nx*y

What does x represent?

Answer 22

Type of orbit

Question 23

specific notation
nx*y

What does y represent?

Answer 23

Number of electrons in the orbitals of the

sub-shell

Question 24

What would the specific notation be for the 1s orbital with 2 electrons?

Answer 24

1s*2

Question 25

Electron configuration atom - Lithium (1)

How many electrons does it have?

Answer 25

3

Question 26

Electron configuration atom - Lithium (2)

How many shells (rings) does it have?

Answer 26

2

Question 27

Electron configuration atom - Lithium (3)

How many electrons in:
1s
2s

Answer 27

1s = 2 (double half arrows)

2s = 1 (one half arrow)

Question 28

Electron configuration atom - Lithium (4)

What is lithium’s electron configuration?

Answer 28

1s2 2s1

Question 29

Electron configuration atom - boron

What is its electron configuration?

Answer 29

5 electrons

1s2 2s2 2p*1

Question 30

What is the order of orbital energy levels from low to high?

More detailed (10)

Answer 30

1s
2s
2p
3s
3p
4s
3d
4p
4d
4f