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Class 11
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Chemistry
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Structure of Atom
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Easy Questions
Structure Of Atom
Chemistry
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Easy Qs
Med Qs
Hard Qs
>
The atomic weight of an atom is because of
A
electrons and protons
B
electrons and neutrons
C
neutrons and protons
D
electrons, neutrons and protons
Easy
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>
The valence
electrons of magnesium is different in ........... quantum number.
A
m
B
n
C
l
D
s
Easy
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>
When the 3d orbital is complete, the new electron will enter in:
A
4p-orbital
B
4f orbital
C
4s orbital
D
4d-orbital
Easy
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>
According to Aufbau principle, the electron has a tendency to occupy that sub-shell which has:
A
lowest energy
B
highest energy
C
average energy
D
no energy
Easy
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>
Which of the following quantities can only be a whole number?
A
Atomic radius
B
Atomic number
C
Mass number
D
Equivalent weight
Easy
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>
For an atom of a given element, the number of electrons equals to:
A
the number of protons
+
number of neutrons
B
the atomic number of the element
C
the number of proton
−
number of neutrons
D
the mass number of the element
Easy
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>
According to Bohr hypothesis, discrete quantity is
A
Momentum
B
Angular velocity
C
Potential energy
D
Angular momentum
Easy
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>
Bohr Magneton value in S.I. Units is:
A
9
.
2
7
3
×
1
0
−
2
4
e
r
g
T
−
1
B
9
.
2
7
3
×
1
0
−
2
4
J
T
−
1
C
9
.
2
7
3
×
1
0
−
1
7
J
T
−
1
D
9
.
2
7
3
×
1
0
−
1
0
c
a
l
T
−
1
Easy
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>
Bohrs atomic model assumes :
A
the nucleus is of infinite mass and is at rest
B
electron in a quantized orbit will not radiate energy
C
mass of the electron remains constant
D
all of the above
Easy
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>
The first model of an atom was given by _____________.
A
N. Bohr
B
E. Goldstein
C
Rutherford
D
J.J. Thomson
Easy
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>