Isotopes are atoms having 

1. Same number of protons but different number of neutrons

2. Same number of neutrons but different number of protons

3. Same number of protons and neutrons

4. None of the above

Subtopic:  Mass-Energy Equivalent |
 84%
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The mass of an α-particle is:

1. less than the sum of masses of two protons and two neutrons.
2. equal to the mass of four protons.
3. equal to the mass of four neutrons.
4. equal to the sum of masses of two protons and two neutrons.
Subtopic:  Nuclear Binding Energy |
 57%
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Atomic number of a nucleus is Z and atomic mass is M. The number of neutron is

(1) M-Z           

(2) M

(3) Z               

(4) M+Z 

Subtopic:  Mass-Energy Equivalent |
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The α-particle is the nucleus of an atom of

(1) Neon             

(2) Hydrogen

(3) Helium           

(4) Deuterium

Subtopic:  Mass-Energy Equivalent |
 91%
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The force acting between proton and proton inside the nucleus is 

(1) Coulombic             

(2) Nuclear

(3) Both                       

(4) None of these

Subtopic:  Mass-Energy Equivalent |
 63%
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For a nucleus to be stable, the correct relation between neutron number N and Proton number Z is

(1) N > Z             

(2) N = Z 

(3) N < Z             

(4) NZ

Subtopic:  Mass-Energy Equivalent |
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Mn and MP represent mass of neutron and proton respectively. If an element having atomic mass M has N-neutron and Z-proton, then the correct relation will be

(1) M<NMn+ZMp         

(2) M>NMn+ZMp

(3) M=NMn+ZMp         

(4) M=NMn+Mp

Subtopic:  Mass-Energy Equivalent |
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If a H2 nucleus is completely converted into energy, the energy produced will be around

(1) 1 MeV               

(2) 938 MeV

(3) 9.38 MeV           

(4) 238 MeV

Subtopic:  Mass-Energy Equivalent |
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As compared C12 atom, C14 atom has

(1) Two extra protons and two extra electrons

(2) Two extra protons but no extra electrons

(3) Two extra neutrons and no extra electrons

(4) Two extra neutrons and two extra electrons

Subtopic:  Mass-Energy Equivalent |
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If m, mn and mp are the masses of XAZ nucleus, neutron and proton respectively 

(1) m<A-Zmn+Zmp       

(2) m=A-Zmn+Zmp

(3) m=A-Zmp+Zmn        

(4) m>A-Zmn+Zmp

Subtopic:  Mass-Energy Equivalent |
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