C3 structure and bonding Flashcards
What is an alloy
a mixture of two or more elements, at least one of which is a metal
covalent bond
the bond between two atoms that share one or more pairs of electrons
covalent bonding
the attraction between two atoms that share one or more pairs of electrons
delocalised electron
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
form of the element carbon that can exist as large cage-like structures, based on hexagonal rings of carbon atoms
What are gasses
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 are intermolecular forces
the attraction between the individual molecules in a covalently bonded substance
What is a 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 states of matter
the forms in which matter can exist. A substance can be solid, liquid or gas
