A. J.J.Thomson model
B. Rutherfords model
C. Bohrs model
D. All of the above laws contradict the statement
Related Mcqs:
- The energy liberated when one atom of U-235 undergoes fission reaction is________________?
A. 200MeV
B. 40MeV
C. 30MeV
D. 20MeV - The diameter of an atom is approximately_______________?
A. 10-12m
B. 10-11m
C. 10-10m
D. 10-14m - During an encounter with an atom alpha particle knocks out ______________?
A. Protons
B. Electrons
C. Neutrons
D. Nothing - In simple cube one atom or molecule lies at its______________________?
A. Force corners
B. Nine corners
C. Eight corners
D. Six corners - Ratio of the weight of H-atom to that of an electron is approximately______________?
A. 18.336
B. 1836
C. 18360
D. 183.6 - Hydrogen atom does not emit X-rays because _________________?
A. its energy levels are too close to each other
B. its energy levels are too far apart
C. it is too small in size
D. it has a single electron - Ground state energy of the 4th orbit in a H-atom is_____________?
A. 13.60 eV
B. 3.40 eV
C. 0.85 eV
D. 1.51 eV - In an electronic transition atom cannot emit______________?
A. γ-rays
B. Infra red radiation
C. Visible light
D. Ultraviolet rays - The metastable state for an atom in laser light is_____________?
A. 10-4 sec
B. 10-5 sec
C. 10-3 sec
D. 10-8 sec - Atom is the smallest particall which is_________?
A. Indivisible
B. Divisible
C. Both
D. Non of theseSubmitted by: Kamran khan
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