BRAINCAKEBonding
Revision notes for Bonding in Edexcel Chemistry (8CH0). Every lesson in BrainCake comes with R.E.C.I.P.E. recall steps, a quick check and spaced reviews.
- Metallic BondingThe outer shell electrons of metals have low ionisation energies.
- Physical Properties of MetalsAll metals are solid at room temperature with the exception of mercury.
- Ionic BondingIonic bonding is the electrostatic attraction between oppositely charged ions.
- The Strength of Ionic BondsThe strength of an ionic bond depends on the size of the ions and the charge on the ions.
- Trends in Ionic RadiiThere are large uncertainties in the measurement of ionic radii.
- Physical Properties of Ionic CompoundsIonic compounds have high melting temperatures.
- Formation of IonsIonic bonding takes place between metals and non-metals.
- Evidence for the Existence of IonsEvidence for ions is electrolysis.
- Covalent BondsA covalent bond is the electrostatic attraction between two nuclei and a shared pair of electrons.
- π-bondsπ bonds arise from the sideways overlap of 2 atomic p-orbitals. π bonds cannot form until sigma bonds are formed so lead to the formation of double…
- Bond Length and Bond StrengthThe strength of a covalent bond is measured by the amount of energy needed to break the bond or the bond enthalpy.
- ElectronegativityElectronegativity is the ability of an atom to attract a bonding pair of electrons.
- Distribution of Electron DensityIf covalently bonded atoms have different electronegativities the distribution of electron density will be more towards the more electronegative…
- Polar Covalent BondsIf covalently bonded atoms have different electronegativities the distribution of electron density will be more towards the more electronegative…
- Continuum of Bonding TypeThere is a continuum of bonding type from pure ionic e.g.
On the specification
- Topic 2A: Bonding
- Topic 2B: Structure