Chemistry Revision

Diffusion
The movement of different particles so they become more evenly mixed
Electron
The smallest part of an atom
Ionic bonding
This type of bonding involves the transferring of electrons
Atomic Mass
The sum of the number of protons and neutrons in the nucleus of an atom.
Proton
A basic particle in an atom’s nucleus that has a positive electrical charge.
Graphite
An example of a giant covalent molecule
Exothermic reactions
These reactions are accompanied by temperature rises
Endothermic reaction
Acid + hydrogen carbonate is an example of an?
Moles
The units chemists use to count particles
Empirical Formula
The simplist ratio of elements in a compound
Neon
This noble gas in advertising signs and lights up when electricity is passed through it.
Argon
This noble gas is used in the filmant of bulbs
Fluorine
The most reactive halogen
Acids
All contain hydrogen ions
Ionic equations
Are equations which only show the chemicals that change during the reaction
Lilac
The colour flame that is produced when potassium is put in a flame
Anode
A postive electrode
Cathode
A negative electrode