Atoms Molecules and Ions
Rutherford’s Model explains that atom has a nucleus which is surrounded by
protons
electrons
neutrons
nuclear energy
electrons
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The smallest particle of an atom which exists, is calledA. matter
B. atom
C. proton
D. electron
The diameter of a ‘nucleus’ is
A. 0.00001nm
B. 1nm
C. 0.1nm
D. 0.01nm
A silver pendant is made up of atoms of
A. silver
B. gold
C. platinum
D. metals
Neutrons carry
A. positive charge
B. negative charge
C. neutral charge
D. no charge
A modern model of an atom shows that electrons are present outside nucleus in the region of high
A. probability
B. velocity
C. speed
D. energy level
In nucleus, mass of an atom is more than
A. 0.9994
B. 0.9499
C. 0.9949
D. 0.4999
The number of oxygen atoms in glucose molecule is 6 and in hydrogen molecules is
A. 6
B. 12
C. 18
D. 8
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