EL 3

Question 1

What’s the trend between the energy in the atom between the electrons and the distance from the nucleus?

Answer 1

The closer to the nucleus the higher the higher energy needed.

Question 2

How many electrons can the 3rd shell hold?

Answer 2

18 Electrons

Question 3

How many electrons can the 4th shell hold?

Answer 3

32 electrons

Question 4

How many electrons are in the ‘s’ subshell

Answer 4

2

Question 5

How many electrons are in the ‘p’ subshell

Answer 5

6

Question 6

How many electrons are in the ‘d’ subshell

Answer 6

10

Question 7

How many electrons are in the ‘f’ subshell

Answer 7

14

Question 8

Work out the electron configuration of Boron

Answer 8

1s2 2s2 2p1

Question 9

Work out the electron configuration of Phosphorus

Answer 9

1s2 2s2 2p6 2s2 3s2 3p3

Question 10

[Ne] 3s2 3p5. What element is this?

What’s its atomic number?

Answer 10

Chlorine

Question 11

[Ar] 4s1
What element is this?
What’s its atomic number?

Answer 11

Potassium

Question 12

[Ar] 3d2 4s2
What element is this?
What’s its atomic number?

Answer 12

Titanium

Question 13

[Kr] 4d10 5s2 5p2

Answer 13

Tin