Structure of Atom Test

Result

Structure of Atom Test - 13

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Weekly Quiz Competition

Question 1
4 / -1

According to Bohr’s model of the atom, an electron can revolve around the atomic nucleus in a suitable orbit without emitting energy if its orbit

A
is a perfect circle

B
is a circle with a large radius

C
houses a whole number of de – Broglie waves

D
houses odd number of de – Broglie waves
Question 2
4 / -1

Which of the following concerning Bohr’s model is false?

A
Predicts that probability of electron near nucleus is more

B
Angular momentum of electron in H atom

C
Introduces the idea of stationary states

D
Explains line spectrum of hydrogen
Question 3
4 / -1

The kinetic energy of the electron in the nth orbit of an atom is given by the relation

A
Predicts that probability of electron near nucleus is more

B
Angular momentum of electron in H atom

C
Introduces the idea of stationary states

D
Explains line spectrum of hydrogen
Question 4
4 / -1

According to Somerfield’s model, only circular orbit is possible for the electron in

A
K shell

B
L shell

C
M shell

D
N shell
Question 5
4 / -1

According to Bohr’s atomic model

A
electron on H atom can have only certain values of angular momentum

B
electrons have a particle as well as wave character

C
atomic spectrum of atom should contain only five lines

D
all the above statements are correct
Question 6
4 / -1

The transition of electrons inH atom that will emit maximum energy is

A

B

C

D
Question 7
4 / -1

The wavelength of a spectral line for electron transition is inversely related to

A
Z (nuclear charge)

B
velocity of electron

C
number of electrons undergoing transition

D
the energy difference between the energy levels involving transition
Question 8
4 / -1

The phenomenon of splitting of spectral lines under the influence of the electric field is known as

A
Photoelectric effect

B
Stark effect

C
Zeeman effect

D
Electromagnetic effect
Question 9
4 / -1

If ionising energy of H atom is 13.6 eV, then the second ionising energy of He should be

A
13.6eV

B
27.2eV

C
54.4 eV

D
Cannot be predicted
Question 10
4 / -1

How many electrons in ₁₉K have n = 3; l = 0?

A
1

B
2

C
4

D
3