2.2.1 Electron Structure

Question 1

Bohr model

Answer 1

2 electrons in first shell

8 in second

Question 2

A-level model of atom

Answer 2

Electrons arranged on principle levels 1,2,3…
Sub energy levels s,p,d,f
Split into orbitals which hold two electrons of opposite spin

Question 3

How many electrons in s orbital

Answer 3

2

Question 4

how many electrons in p orbital

Answer 4

6

Question 5

How many electrons in d orbital

Answer 5

10

Question 6

How many electrons in f orbital

Answer 6

14

Question 7

Orbital definition

Answer 7

High region of probability where up to 2 electrons with opposite spin can occupy

Question 8

Order of electron filling

Answer 8

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

Question 9

Which two elements don’t fit the normal filling of electrons

Answer 9

Copper

Chromium

Question 10

Copper subshell order

Answer 10

1s2 2s2 2p6 3s2 3p6 4s1 3d10

Question 11

Chromium subshell order

Answer 11

1s2 2s2 2p6 3s2 3p6 4s1 3d5

Question 12

Using spin diagrams

Answer 12

Electrons will fill each orbital singly before pairing up with electrons of the opposite spin

Question 13

Shape of s orbital

Answer 13

Sphere

Question 14

Shape of p orbital

Answer 14

Dumbbell