Definitions Flashcards
What is a covalent bond?
The bond between 2 non-metalatoms that share one or more pairs of electrons
What is an ionic bond?
The electrostatic force of attraction between positively and negatively charged ions
What is a dot and cross diagram?
A diagram showing only the arrangement of the outer shell electrons of the atoms or ions in a substance
What is a giant lattice structure?
A huge 3D network of atoms or ions
What is an ion?
A charged particle formed by the loss or gain of electrons
What are intermolecular forces?
The attraction between the individual molecules in a covalently bonded substance
What are polymers?
A substance made from very large molecules made up of many repeating units
What are giant covalent structures?
A huge 3D network of covalently bonded atoms
What are delocalised electrons?
Bonding electron that is no longer associated with any one particular atom
What are fullerines?
Form of the element carbon that can exist as large cage-like structures, based on hexagonal rings of carbon atoms
What is an alloy?
A mixture of two or more elements, at least one of which is a metal
What is an atom?
The smallest neutral part of an element
that can take part in chemical reactions.
What is an element?
They are made up of one type of atom.
Substances that cannot be split up into
simpler substances.
What is a compound?
Different elements/different atoms that
are chemically combined together (by
chemical bonds ).
What is a molecule?
Two or more elements joined together (by
covalent bonds).
