Atomic Structure Test

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Atomic Structure Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

According to Bohr’s Model of hydrogen atom

A
Total energy of the electron is quantized

B
Orbital angular momentum of the electron is quantized as

C
Both (a) & (b)

D
None of these
Question 2
1 / -0

Heisenberg’s uncertainty principle rules out the exact simultaneous measurement of

A
probability and intensity

B
charge and velocity

C
charge density and radius

D
position and velocity
Question 3
1 / -0

If electron, hydrogen, helium and neon nuclei are all moving with the velocity of light, then the wavelengths associated with these particles are in the order

A
Electron > hydrogen > helium > neon

B
Electron > helium > hydrogen > neon

C
Electron > hydrogen > helium < neon

D
Neon > hydrogen < helium < electron
Question 4
1 / -0

The ratio between kinetic energy and the total energy of the electrons of hydrogen atom according to Bohr’s model is

A
2 : 1

B
1 : 1

C
1 : –1

D
1 : 2
Question 5
1 / -0

The correct order of increasing energy of atomic orbitals is

A
5p < 4f < 6s < 5d

B
5p < 6s < 4f < 5d

C
4f < 5p < 5d < 6s

D
5p < 5d < 4f < 6s
Question 6
1 / -0

The quantum number which determines the shape of the orbital is

A
principal

B
azimuthal

C
magnetic

D
spin
Question 7
1 / -0

In two H atoms, the electrons move around the nucleus in circular orbits of radius r and 4r respectively. The ratio of the times taken by them to complete one revolution is

A
1 : 4

B
1 : 2

C
1 : 8

D
2 : 1
Question 8
1 / -0

Given that the mass of electron is 9.1 × 10^–31 kg and velocity of electron is 2.2 × 10⁶ ms^–1. If the uncertainty in its velocity is 0.1%, the uncertainty in position would be

A
26 nm

B
32 nm

C
48 nm

D
50 nm
Question 9
1 / -0

The set of quantum numbers not applicable to an electron is

A
1, 1, 1, +1/2

B
1, 0, 0, +1/2

C
1, 0, 0, – 1/2

D
2, 0, 0, +1/2

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Re-Attempt Weekly Quiz Competition

Atomic Structure Test - 2

Result

Atomic Structure Test - 2

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SHARING IS CARING

Question 1

Total energy of the electron is quantized

Orbital angular momentum of the electron is quantized as

Both (a) & (b)

None of these

Question 2

probability and intensity

charge and velocity

charge density and radius

position and velocity

Question 3

Electron > hydrogen > helium > neon

Electron > helium > hydrogen > neon

Electron > hydrogen > helium < neon

Neon > hydrogen < helium < electron

Question 4

2 : 1

1 : 1

1 : –1

1 : 2

Question 5

5p < 4f < 6s < 5d

5p < 6s < 4f < 5d

4f < 5p < 5d < 6s

5p < 5d < 4f < 6s

Question 6

principal

azimuthal

magnetic

spin

Question 7

1 : 4

1 : 2

1 : 8

2 : 1

Question 8

26 nm

32 nm

48 nm

50 nm

Question 9

1, 1, 1, +1/2

1, 0, 0, +1/2

1, 0, 0, – 1/2

2, 0, 0, +1/2

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