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  atomic structure Quiz
Question Number 1
what do you mean by atomic structure?
A. structure of an atom
B. structure of a particle
C. structure of a molecule
Question Number 2
what are protons,electrons,neutrons in an atom called?
A. particles
B. molecules
C. sub atomic particles
D. atoms
Question Number 3
discharge tube was invented by
A. j.j. thomson
B. William crooks
C. g.j.stoney
D. goldstein
E. rutherford
Question Number 4
cathode rays are also known as
A. electons
B. protons
C. neutrons
Question Number 5
charge of a proton is
A. 1.602x10'-19
B. -1.602x10'19
Question Number 6
relative charge of a neutron is
A. 19
B. 45
C. 17
D. 1
E. 89
F. 0
Question Number 7
rutherford's atomic model is known as
A. watermelon model
B. planetary model
C. rotatory model
Question Number 8
size of nucleus is
A. 10'-15
B. 10'-11
Question Number 9
what are present in nucleus and what are they called?
A. protons,neutrons,nucleons
B. electrons,neutrons,protons
Question Number 10
mass of a electron is
A. 9.10x10'19gm
B. 9.10x10'-29gm
C. 9.10x10'-28gm
Question Number 11
alpha particle is represented by
A. He'2+
B. H'2-
C. He'2-
Question Number 12
alpha particle is represented by
A. He'2+
B. H'2-
C. He'2-
Question Number 13
number of protons in an atom is known as
A. atomic weight
B. atom
C. molecules
D. mass
E. atomic number





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