C3 Structure And Bonding Flashcards
What is an alloy?
A mixture of two or more elements, at least one of which is a metal.
What is a covalent bond?
The bond between two atoms that share one or more pairs of electrons.
What is covalent bonding?
The attraction between two atoms that share one or more pairs of electrons.
What is a delocalised electron?
A bonding electron that is no longer associated with any one particular atom.
What is a dot and cross diagram?
A drawing to show only the arrangement of outer shell electrons of the atoms or ions in a substance.
What is a fullerene?
A form of the element carbon that can exist as large cage-like structures, based on hexagonal rings of carbon atoms.
What are gases?
Substances that have no fixed shape or volume and can be compressed easily.
What is a giant covalent structure?
A huge 3D network of covalently bonded atoms.
What is a giant lattice?
A huge 3D network of atoms or ions.
What is a giant structure?
See giant lattice.
What are intermolecular forces?
The attraction between the individual molecules in a covalently bonded substance.
What is an ionic bond?
The electrostatic force of attraction between positively and negatively charged ions.
What are liquids?
Substances that have a fixed volume, but they can flow and change their shape.
What is particle theory?
A theory that explains the properties of solids, liquids and gases based on the fact that all matter is made from tiny particles. It describes the movement of particles and the distance between them.
What is a polymer?
A substance made from very large molecules made up of many repeating units.
What are solids?
Substances that have a fixed shape and volume that cannot be compressed.
What are the states of matter?
The forms in which matter can exist. A substance can be solid, liquid or gas.
