A. Hitorff
B. Stoney
C. William Crookes
D. J.Perrin
A. 10 torr
B. 1 torr
C. 0.1 torr
D. 0.01 torr
A. Principal of a quantum number
B. Azimuthal quantum number
C. Magnetic quantum number
D. Spin quantum number
A. Zeemans effect
B. Starks effect
C. Photoelectric effect
D. Compton effect
A. Moving accelerate towards the nucleus
B. Continuous spectrum
C. behavior of electron remain unexplained
D. all
A. 9.11×10-31 Kg
B. Cast shadow
C. Heat up the platinum foil
D. Cannot ionize
A. Brighter
B. Darker
C. Colourless
D. Hard to locate
A. 6
B. 10
C. 14
D. 18
A. Principal (QN)
B. Azimuthal (QN)
C. Spin (QN)
D. Both A & B
All of the following were theorized by Bohr in his description of the atom except__________________?
A. Angular momentum of electrons in multiples of h/2?
B. Electrons revolve in discrete circular orbits
C. Energy of each electron is directly proportional to n2
D. Electrons radiate energy continuously in a given orbit.