1729682
Description
Mind Map by elodie1tiger, updated more than 1 year ago
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Created by elodie1tiger
about 10 years ago
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Chemistry C1
- Atoms, Elements and compounds.
- All substances are
made of Atoms.
- Elements are
only made out
of 1 atom.
- Chemical symbols
are used to
represent atoms.
- Eg: Na-sodium.
- Eg: Na-sodium.
- Compounds contain
more than 1 element.
- Molecules are a
grouping of 2 or
more atoms.
- All substances are
made of Atoms.
- Atomic structure
- The nucleus of an
atom is made of
protons and
neutrons.
- Protons-
positive
charge.
- Electrons-negative
charge
- Neutrons--not
charged.
- The atomic number
of a elementis equal
to the number of
protons in the
nucleus of its atoms.
- Elements
are arranged
in order of
their atomic
number.
- Mass number=
protons+neutrons in the
nucleus of an atom.
- Ex:Protons=9
Electrons=9 mass
number=19
neutrons= mass
number-atomic
number=19-9=10.
- Ex:Protons=9
Electrons=9 mass
number=19
neutrons= mass
number-atomic
number=19-9=10.
- The nucleus of an
atom is made of
protons and
neutrons.
- Arrangement of
electrons in atoms.
- Unreactive noble
gases have stable
arrangements
electrons
- Electrons in atoms
are represented on
energy levels as
shells.
- Electrons occupy
the lowest energy
levels first.
- All elements in the
same table have the
same amount of
electrons in their
highest energy level.
- Unreactive noble
gases have stable
arrangements
electrons
- Forming Bonds.
- Compounds of
metal bonded to
non-metals have
ionic bonds.
- The formula of
ionic compounds
shows the simplest
ratios of ions.
- Compounds of
non-metals has
covalent bonds.
- The formula of a molecule
shows the number of atoms
in the molecule.
- Compounds of
metal bonded to
non-metals have
ionic bonds.
- Chemical equations.
- Atoms get re-arranged.
- The mass of the
products is equal
to the mass of
reactants.
- Symbol
equations
should always be
balanced.
- Same on each side.
- Same on each side.
- Atoms get re-arranged.
- Limstone
- Made of
calcium
carbonate.
- Used as
building
materials and
cement
- Limestone with
sand, aggregate
and water makes
concrete.
- CaCO3= calcium carbonate.
- Made of
calcium
carbonate.
- Iron
- Pig iron
- Wrought iron.
- Cast iron
- Cast iron
- Wrought iron.
- Iron ore=iron+oxygen.
- Extract iron by
carbon-blast furance.
- Extract iron by
carbon-blast furance.
- Pig iron
- Limestone.
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