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Atoms and Atom Model
Radioisotopes can also be traced
inside human body
10,000 kilometers underground
in feces of animals
in plants
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Atoms and Atom Model
The activity of organs in a human body can be studied by
injected medicines in the body
injected chip in human body
injected radioisotope in human body
injected monitors in the body
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Atoms and Atom Model
The ionic chemical formula of hydrogen is
H
–
H
+
H
–
H
+
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Atoms and Atom Model
The atomic number of ‘neon’ is
8
10
12
14
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Atoms and Atom Model
The third shell can hold up to
four electrons
six electrons
eight electrons
twelve electrons
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Atoms and Atom Model
Isotopes behave in different way in
chemical reactions
bonding
electrical conductivity
all of above
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Atoms and Atom Model
Isotopes behave the same way in
chemical reaction
bonding
electrical conductivity
physical reaction
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Atoms and Atom Model
Large molecules such as polythene and polystyrene contains
ionic bonding
metallic bonding
covalent bonding
dative bonding
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Atoms and Atom Model
One molecule of water is made up of
one oxygen and one hydrogen atom
one oxygen and two hydrogen atoms
two oxygen and one hydrogen atom
two oxygen and two hydrogen atoms
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Atoms and Atom Model
Little free space is found between particles in
liquids
gases
solids
solids and liquids
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