2.2.1 Electron Structure

Question 1

Electrons orbit the…

Answer 1

Nucleus

Question 2

Electrons exist on what?

Answer 2

Certain energy levels/shells

Question 3

What is a principle quantum number

Answer 3

The shell the electrons are located on

Question 4

1st principle quantum number/shell can hold …

Answer 4

2 Electrons

Question 5

2nd principle quantum number/shell can hold …

Answer 5

8 Electrons

Question 6

3rd principle quantum number/shell can hold …

Answer 6

18 Electrons

Question 7

4th principle quantum number/shell can hold …

Answer 7

32 electrons

Question 8

What is an orbital?

Answer 8

A region around the nucleus that can hold up to 2 electrons with opposite spins to minimise repulsion

Question 9

S orbitals have what shape?

Answer 9

Spherical

Question 10

P orbitals have what shape?

Answer 10

Dumbell

Question 11

What are the 4 types of subshells

Answer 11

S
P
D
F

Question 12

S sub shells have only…

Answer 12

1 orbital (2e-)

Question 13

P sub shells have …

Answer 13

3 orbital (6e-)

Question 14

D sub shells have …

Answer 14

5 orbital (10e-)

Question 15

F sub shells have …

Answer 15

7 orbital (14e-)

Question 16

Order of orbitals!!!

Answer 16

1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s ,4d, 5p

Question 17

Why do the electrons in an orbital have opposite spins?

Answer 17

To minimise repulsion of the 2 electrons which have the same charge

Question 18

When filling up orbitals what must you do?

Answer 18

Fill them up singly before pairing