A. Fast neutrons
B. Slow neutrons
C. Moderate neutrons
D. All are possible
Neutrons moving with an energy of 1.2 MeV are called_______________? Read More »
Atomic Structure, Chemistry Mcqs A. 7f
B. 7s
C. 7p
D. 7d
When 6d orbital is complete the entering electron goes into_________________? Read More »
Atomic Structure, Chemistry Mcqs A. Attractive forces
B. Repulsive force
C. Electrons
D. Neutrons
Centrifugal forces are balanced in atom by__________________? Read More »
Atomic Structure, Chemistry Mcqs A. Electron
B. Positron
C. Neutron
D. None of above has such capability
_______________ can expel proteons from paraffins ? Read More »
Atomic Structure, Chemistry Mcqs A. n
B. 1
C. m
D. s
Quantum number which tells the energy of electron is________________? Read More »
Atomic Structure, Chemistry Mcqs A. Moseley
B. Davisson and Germer
C. Einstein
D. Roentgen
Wavelength of electron was verified by_________________? Read More »
Atomic Structure, Chemistry Mcqs A. Orbit is cylindrical
B. Orbit is elliptical
C. Orbit is longitudinal
D. Orbit is asymmetrical
Sommerfelds modification in Bohrs model is_______________? Read More »
Atomic Structure, Chemistry Mcqs A. when electrons jump down to 2nd- orbit
B. when electrons jump down to 3rd- orbit
C. when electrons jump down to 4th- orbit
D. when electrons jump down to 5th- orbit
Pfund series are produced in the spectrum of hydrogen atom__________________? Read More »
Atomic Structure, Chemistry Mcqs A. 1
B. 3
C. 5
D. 7
A. Gamma-rays
B. Alpha-rays
C. Beta-rays
D. X-rays
Rutherford bombarded _________________ particles in discovery of nucleus? Read More »
Atomic Structure, Chemistry Mcqs