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Wave-particle-debroglie

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Electrons move in a set path, and can only have certain energy levels

a)

Neils Bohr

b)

Louis DeBroglie

c)

Werner Heisenberg

2.

Only the wave theory of light offers an explanation for the ability of light to exhibit...

a)

diffraction.

b)

reflection.

c)

photo luminescence

d)

illumination.

3.

Experiments on which of the following suggested the wave nature of electrons?

a)

the photoelectric effect

b)

electron diffraction by a crystalline material

c)

β decay

4.

De Broglie equation

a)

relates the momentum of a mass to its wavelength

b)

relates the energy of a mass to its wavelength

c)

relates the frequency of a mass to its wavelength

d)

relates the work function of a mass to its wavelength

5.

If waves can behave like particles, then particles can behave like a wave. This is the idea behind...

a)

Quantization of Energy

b)

Photoelectric Effect

c)

Compton Effect

d)

deBroglie Waves

6.

An electron cloud

a)

represents a 50% probability of finding an electron

b)

has uniform density

c)

can be called an orbital

d)

can only show where the electron is not located

SHOW ANSWER

7.

Particles whose motions are better described by quantum mechanics can only gain or lose energy in discrete units called

a)

Protons

b)

Quanta

c)

Electrons

8.

The de Broglie wave equation showed that the wavelength of any moving object is equal to

a)

m/hν

b)

h/mv

c)

v/mh

d)

hm/v

9.

Determined that electron paths cannot be predicted and exist inside the Electron Cloud.

a)

John Dalton

b)

Ernest Rutherford

c)

Schrodinger & Heisenberg

d)

Bohr

10.

Believed that electrons travelled around the nucleus in definite paths.

a)

Niels Bohr

b)

Ernest Rutherford

c)

Modern Atomic Theory