Zusammenfassung der Ressource
AQA GCSE Chemistry 2
- Structure and Bonding
- Ionic
- Bonding
- When atoms form
chemical bonds by
transferring electrons,
they form ions.
- •Atoms that lose electrons become
positively charged ions - more
protons than electrons
- •Atoms that gain electrons become
negatively charged ions - fewer
protons than electrons
- Reactions
- Group 1 elements all react
with non-metal elements to
form ionic compounds, in
which the metal ion has a
single positive charge.
- Group 7 elements react with
the alkali metals to form
ionic compounds, in which
the halide ions have a single
negative charge
- The reactions between the
elements in groups 1 and 7
are all very exothermic. Some
are explosive in nature, and
they all produce soluble white
solids.
- Compounds
- An ionic compound is a giant
structure of ions held together
by strong forces of attraction
between oppositely charged
ions. These ions act in all
directions in the lattice, this is
called ionic bonding.
- In the formula for any ionic
compound, the sum of the
charges on the ions must be 0.
- "An ionic bond is an
omnidirectional electrostatic
force of attraction between
oppositely charged ions"
- Covalent Bonding
- Metallic Bonding
- How structure influences the properties and uses of substances
- Atomic Structure, analysis and quantitive chemistry
- Rates of Reaction
- Exothermic and Endothermic Reactions
- Acids, Bases and Salts
- Electrolysis