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SET-1
SET-2
SET-3
SET-4
SET-5
SET-6
SET-7
1.
Number of P-electrons in the bromine atom
A.
7
B.
12
C.
15
D.
17
Answer :
Answer & Solution
2.
The absolute value of charge on electron was determined by
A.
R.A Mallikan
B.
Rutherford
C.
J.J Thomson
D.
Chadwick
Answer :
Answer & Solution
3.
The antiparticle of an electron is
A.
Alpha Particle
B.
Beta particle
C.
Positron
D.
Propton
Answer :
Answer & Solution
4.
Which of the following is the maximum number of electrons that can be present in M –Shell?
A.
2
B.
8
C.
18
D.
32
Answer :
Answer & Solution
5.
The electron configuration of a dispositive ion M2+ is 2, 8, 14 and its atomic mass is 56. The number of neutrons in the nucleus would be
A.
30
B.
32
C.
34
D.
42
Answer :
Answer & Solution
6.
The proton is heavier than an electron by
A.
187 times
B.
1837 times
C.
2827 times
D.
3837 times
Answer :
Answer & Solution
7.
The nuclear particle having no mass and no charge, but only spin is
A.
Electron
B.
Neutrino
C.
Proton
D.
Meson
Answer :
Answer & Solution
8.
Which among the following will be a negative ion?
A.
If it has more protons than electrons
B.
If it has more electrons than neutron
C.
If it has more electrons than protons
D.
If it has more protons than electrons
Answer :
Answer & Solution
9.
When Helium atom loses electron, then it becomes
A.
Negative Helium ion
B.
Alpha Particle
C.
Positive Helium ion
D.
Proton
Answer :
Answer & Solution
10.
The unrelated member of the following group is
A.
Cyclotron
B.
Helium ion
C.
Proton
D.
Neutron
Answer :
Answer & Solution
11.
The mass of proton and mass of ___ is same.
A.
Isoprone
B.
Alpha particle
C.
Electron
D.
Neutron
Answer :
Answer & Solution
12.
An atom has 2 electrons in K-shell, 8electrons in L-Shell and 6 electrons in M-Shell. The number of s- electrons in that element is
A.
5
B.
6
C.
7
D.
10
Answer :
Answer & Solution
13.
Fe has 26 protons in its nucleus. What is the number of electrons in Fe2+ (II) ion?
A.
13
B.
24
C.
26
D.
28
Answer :
Answer & Solution
14.
Which of the following particle is negatively charged?
A.
Electron
B.
Positron
C.
Proton
D.
Neutron
Answer :
Answer & Solution
15.
The triad of nuclei is isotone in
A.
6C12, 7N14, 9F18
B.
6C14, 7N14, 9F19
C.
6C14, 7N15, 9F17
D.
6C14, 7N14, 9F17
Answer :
Answer & Solution
16.
Electrons in the highest energy level of an atom are called ______
A.
Valence electrons
B.
Orbital electrons
C.
Valence Protons
D.
Orbital protons
Answer :
Answer & Solution
17.
Who is awarded by Noble Prize for the discovery of Neutron?
A.
Roentgen
B.
Neil Bohr
C.
Chadwick
D.
Rutherford
Answer :
Answer & Solution
18.
Electrons move around the nucleus in
A.
Spin
B.
Translatory
C.
Orbital
D.
Vibrational
Answer :
Answer & Solution
19.
Which of the following has maximum Mass?
A.
Neutron
B.
Nucleus of Hydrogen
C.
Electron
D.
Proton
Answer :
Answer & Solution
20.
CN- ion is isoelectronic with
A.
CO
B.
N2
C.
both A and B
D.
None of these
Answer :
Answer & Solution
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