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Atoms and Atom Model
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Atoms and Atom Model
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Atoms and Atom Model
In nuclear power plants, energy is released
quickly
slowly
normally
very quickly
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Atoms and Atom Model
The symbol of “oxygen” is
C
N
O
Fl
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Atoms and Atom Model
Hydrogen is a diatomic gas and its chemical formula is
H
2
H
2
H
Hy
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Atoms and Atom Model
To trace the path of phosphorus, the isotope of phosphorus which is added to the fertilizers, is
Phosphorus-31
Phosphorus-32
Phosphorus-33
Phosphorus-34
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Atoms and Atom Model
The smallest particle of water is
element
atom
molecule
neutron
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Atoms and Atom Model
Nuclear batteries that produce small amount of current have
longer life
shorter life
large size
circular shape
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Atoms and Atom Model
‘Radioisotopes’ are used to trace
path of elements in a body
harmful substances in a human body
cancer cells in a human body
harmful substances in metals
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Atoms and Atom Model
The rays that can penetrate into metal are
x-rays
ultra violet rays
gamma rays
radio waves
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Atoms and Atom Model
The number of important particles in an atom is
2
3
4
5
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Atoms and Atom Model
The positive ion is known as
cation
anion
positron
negatron
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