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Atomic Structure

A set of key words from chapter 29 & 30

Atom The smallest particle of an element
Proton Sub-atomic particle with a positive charge
Electron Sub-atomic particle with a negative charge
Neutron Sub-atomic particle with a neutral charge
Atomic mass unit
Sub-Atomic Particles
Planetary Model
Atomic number The number that shows where the element is in the periodic table and shows how many protons and electrons are in the atom.
Atomic mass
N= any number (e.g 1,2,3)
Group Column going down in the periodic table. Elements in the same group are similar.
Alkali metal
Alkaline earth metal
Nobel gases
Periodic table
Neils Bohr
Created by: r_tothe_ebecca