Atoms and Nuclei Test

Result

Atoms and Nuclei Test - 49

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

Which of the following pairs is an isobar ?

A
₁H¹ and ₁H²

B
₁H² and ₁H³

C
₆C¹² and ₆C¹³

D
₁₅P³⁰ and ₁₄Si³⁰
Question 2
4 / -1

The mass number of a nucleus is equal to the number of

A
Electrons it contains

B
Protons it contains

C
Neutrons it contains

D
Nucleons it contains
Question 3
4 / -1

The rest energy of an electron is

A
510 KeV

B
931 KeV

C
510 MeV

D
931 MeV

Solution
Question 4
4 / -1

In ₈₈Ra²²⁶ nucleus, there are

A
138 protons and 88 neutrons

B
138 neutrons and 88 protons

C
226 protons and 88 electrons

D
226 neutrons and 138 electrons

Solution
Question 5
4 / -1

The mass of a neutron is the same as that of

A
A proton

B
A meson

C
An epsilon

D
An electron
Question 6
4 / -1

π masons can be

A
π⁺ or π^–-

B
π⁺ or π^o

C
π^– or π^o

D
π⁺, π^– or π^o

Solution
Question 7
4 / -1

In helium nucleus, there are

A
2 protons and 2 electrons

B
2 neutrons, 2 protons and 2 electrons

C
2 protons and 2 neutrons

D
2 positrons and 2 protons

Solution
Question 8
4 / -1

Antiparticle of electron is

A
₀n¹

B
₁H¹

C
Positron

D
Neutrino
Question 9
4 / -1

What is the particle x in the following nuclear reaction

A
Electron

B
Proton

C
Photon

D
Neutron

Solution
Question 10
4 / -1

If the binding energy per nucleon in Li⁷ and He⁴ nuclei are respectively 5.60 MeV and 7.06 MeV, then energy of reaction Li⁷ + p → 2₂He⁴ is

A
19.6 MeV

B
2.4 MeV

C
8.4 MeV

D
17.3 MeV

Solution