Exam Q 3

Question 1

What term is used to refer to the condition of the hydrogen atom when its electron occupies the E1 level?

Answer 1

Ground state

Question 2

What term is used to refer to the condition of the hydrogen atom when its electron occupies any of the levels E2, E3, ect?

Answer 2

Excited state(s)

Question 3

What causes the electron to leave the E1 level?

Answer 3

It gains energy/it is heated/ an electric current is passed through it/ it absorbs a photon

Question 4

Why does the electron not remain in any of the levels E2, E3, etc?

Answer 4

Higher energy levels unstable

Question 5

The visible lines in the atomic emission spectrum of a sample of hydrogen are produced when electrons fall to a particular energy level.
Identify this energy level

Answer 5

E2

Question 6

How does modern atomic theory describe the behaviour of electrons?

Answer 6

Electrons exhibit/have both wave and particle properties

Question 7

What are orbitals?

Answer 7

It is the region in space that within has a high probability of finding an electron