Atomic Structure Set 1

Results

#1. The uncertainty principle was stated by

de Broglie

Heinsenberg

Einstein

Schrodinger

#2. When a pressure in a discharge tube is reduced, which of the following phenomenon becomes very prominent

gas conducts electricity

a discharge takes place

gas ionizes

gas glows

#3. Atom bomb is based on the principle of

nuclear fusion

nuclear fission

fusion and fission both

radioactivity

#4. A spinning electron creates

magnetic field

electric field

quantum field

none of these

#5. The volume of space in which there is 95% chance of finding an electron is

orbit

atomic orbital

degenerate orbital

quantized orbital

#6. Planck’s equation is

E = mc2

E = hv

E = hv2

E = mc

#7. In an atom, the electrons

are stationary in various energy levels

are distributed in three dimensional charge cloud around the nucleus

embedded in space around the nucleus

revolve around the nucleus at random

#8. The mass number of an element is equal to

number of electrons in an atom

number of protons and neutrons in the nucleus

number of protons in the nucleus

number of neutrons in the nucleus

#9. The energy of bounded electron in H atom is

positive

negative

zero

none of these

#10. Quantum number which has symbol “n” is called

principal quantum

Azimuthal quantum

Spin quantum

Magnetic quantum

Finish