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Atoms and Atom Model
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Atoms and Atom Model
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Atoms and Atom Model
The valency of aluminum is
2
1
3
4
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Atoms and Atom Model
The atomic number of lithium is
1
2
3
4
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Atoms and Atom Model
Electrons have
negative charge
positive charge
no charge
both charges
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Atoms and Atom Model
All three isotopes of carbon are combined with oxygen to form
carbon monoxide
carbon dioxide
carbon trioxide
carbon tetroxide
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Atoms and Atom Model
The number of proton in an ‘atom’ is also known as
atomic number
nucleon number
mass number
photon number
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Atoms and Atom Model
‘Chlorine’ becomes an anion because
it loses a proton
it gains a proton
it loses an electron
it gains an electron
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Atoms and Atom Model
The valency of magnesium is
1
2
3
4
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Atoms and Atom Model
Second shell can hold up to
four electrons
six electrons
eight electrons
twelve electrons
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Atoms and Atom Model
The closer the shell to the nucleus, the
lower the energy level
higher the energy level
smaller the size
lighter the mass
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Atoms and Atom Model
The first electromagnetic generator “Faraday disk” was built in
1381
1831
1813
1183
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