Atoms Molecules and Ions

Atoms Molecules and Ions
Molecules which contain fixed number of same type of atoms are molecules or
elements
compounds
mixtures
all of them
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Atoms Molecules and Ions
The representation of an object, system or phenomenon is done by
scientific model
key model
atomic model
role model
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Atoms Molecules and Ions
The major part of an atom is
empty
filled
charged
covered
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Atoms Molecules and Ions
One carbon atom and one oxygen atom are combined together to form a molecule of
oxygen
water
carbon dioxide
carbon monoxide
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Atoms Molecules and Ions
An atom’s model that the atom is composed of electrons surrounded by a group of positive charge to balance the electrons’ negative charges is called
Thomson’s Model
Rutherford’s Model
Dalton’s Model
Bohr’s Model
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Atoms Molecules and Ions
The number of protons in a ‘carbon’ atom is
6
11
12
10
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Atoms Molecules and Ions
An atom is itself an entity and by charge it is
neutral
positive
negative
retrograde
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Atoms Molecules and Ions
Many helium atoms join together to form
ammonia gas
helium gas
oxygen gas
neon gas
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Atoms Molecules and Ions
Each ‘ozone’ molecule is made up of three
oxygen atoms
phosphors atoms
carbon dioxide atoms
nitrogen atoms
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Atoms Molecules and Ions
Ammonia molecule contains one nitrogen atom and three atoms of
hydrogen
helium
nitrogen
carbon
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