STRUCTURE AND BONDING

what’s covalent bonding?

bonding between 2 or more atoms where electrons are shared

what’s a molecule?

a substance which contains two or more covalently bonded atoms

what does the group number indicate?

The group number indicates how many electrons an atom would have to lose or gain to get a full outer shell of electrons.

what’s a metal?

an element which loses electrons to form positive ions

what’s a non metal?

an element which gains electrons to form negative ions

what’s a ion?

An atom (or particle) with a positive or negative charge,

due to loss or gain of electrons

what’s a ionic bond?

A bond formed by the electrostatic attraction of oppositely

charged ion

what’s an electrostatic?

The force between a positive and negative charge.

what’s a polymer?

a very large molecule , made from small molecules known as monomers

what is metallic bonding?

a type of bonding that only occurs in metals

what’s a delocalised electron?

an electron that is not attached to an atom

what is malleable?

The ability of a material to be bent into shape