simple molecules vs. giant structures (giant covalent ( 61bpiIUjZpL._SX466…
simple molecules vs. giant structures
table salt (sodium chloride)
an ionic bond is between a metal and a non-metal, it's the transfer of valence electrons.
properties: form crystals, they are hard and brittle, they have high melting and boiling points
properties: low melting and boiling points, low conductivity,
a covalent bond is when there is a sharing of an electron pair between two atoms (unlike ionic, they don't completely give up electrons, only share)
properties: solids at room temperature, very high melting and boiling points, meaning a large amount of energy is needed to break there covalent bond.
they contain more atoms than a simple covalent bond, they are usually arranged into giant lattices, and are extremely strong
carbon dioxide (CO2)
properties: low melting and boiling points, because they are held together with weak intermolecular forces, they don't conduct any electricity.
they contain only a few atoms
metals form positive ions creating metallic bonds
www.gcsescience.com › a41-metal-bonding-delocalized
a delocalised electron is one that is not connected to a particular ion.
delocalised atoms stable the forces, as they spread energy over a larger area
interaction between molecules its the sum of all the forces between two neighboring molecules