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Chemistry AO1 (understand covalent bonding (strong electrostatic…
Chemistry AO1
understand covalent bonding
strong electrostatic attraction between two nuclei and the shared pair(s) of electrons between them
dot and cross diagrams to show electrons in simple covalent molecules, including those with multiple bonds and dative covalent (coordinate) bonds
The relationship between bond lengths and strengths in covalent bonds
tetrahedral basis or organic chemistry
understand the calculations
relative atomic mass
atomic number and relative molecular mass
balanced equations
moles, molar masses and molarities
understand ionic bonding
effects ionic radius and ionic charge have on the strength of ionic bonding
As the
strong electrostatic attraction between oppositely charged ions
ionic bonding happens because the two opposite charges of ions
o electronic configuration diagrams of cations and anions.
formation of ions in terms of electron loss or gain
Understand the electronic structure of atoms
Aufbau principle
electrons will fill atomic orbitals of the lowest available energy levels before going to the higher ones
Bohr theory
Electrons orbit the nucleus in orbits that have a set size and energy. The energy of the orbit is related to its size. The lowest energy is found in the smallest orbit.
Electronic orbitals
blocks
understand metallic bonding
de-localised electrons
positive metal ions
regular layer structure
understand quantities used in chemical reactions
percentage yields
reacting quantities
mass, volume of solution, concentration
understand intermolecular forces
dipole-dipole
hydrogen bonding
van der waals
