Chemistry
- Created by: Tildy
- Created on: 28-11-11 18:49
Fullscreen
Relative atomic mass (R.A.M)
-Each type of atom has a different mass. However the mass of an atom is too small to measure. Protons and neutrons are the heavy particles in an atom, we ignore the tiny mass of electrons. They each have a mass of 1 atomic mass unit, and are found in the nucleus of an atom.
The Periodic Table
The periodic table arranges the elements in order of atomic number
groups:
-there are 8 groups
-a group is a vertical column
-elements in a group have similar properties
periods:
-periods are the rows across
metals, non-metals:
-the periodic table is split into a few groups - metals, non-metals and…
Comments
No comments have yet been made