Structure Of Atom

Chemistry
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The band spectrum is caused by:

A
molecules
B
atoms
C
any substance in solid state
D
any substance in liquid state
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The best evidence that electrons are arranged in definite orbits or energy levels is based on the observation that:

A
atomic spectra consist of discrete lines and not continuous bands
B
electrons in the beta ray have high kinetic energy
C
the penetrating power of cathode ray electrons depends upon the voltage used to produce them
D
electrons revolve around the nucleus
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If Aufbau rule is violated, then will be in:

A
s-block
B
p-block
C
d-block
D
f-block
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Which of the following is/are true as per Thomson's model of atom?

A
An atom is not electrically neutral.
B
An atom is a positively charged sphere with electrons embedded in it.
C
Negative and positive charges in the atom are equal in magnitude.
D
None of the above
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Which of the following properties are similar for isotopes?

A
Physical properties
B
Chemical properties
C
Both physical and chemical properties
D
Neither physical nor chemical properties
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