Atomic structure, Day 2, CH101

Which is not Bohr's model

• Electrons revolve around the nucleus in a fixed circular path termed “orbits

• Every circular orbit will have a certain amount of fixed energy

• The change in energy occurs when the electrons jump from one energy level to other

• None

For the hydrogen atom (Z = 1), the smallest radius is

• 0.529 Å

• 0.139 Å

• 0.329 Å

• none

Energy of nth Bohr’s orbit is

• -2.509eV

• -1.709eV

• -1.559eV

• none

The relationship between the radius (r) of the electronic orbit and the principal quantum no. (n) is

• r α n2

• r α n

• r α 1/n2

• none

Which is the Drawbacks of Bohr’s atomic model

• could not explain the stability of an atom

• Did not explain Hydrogen spectra

• Did not explain the Zeeman effect

• not