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Atom
The atom is the smallest part of an element. They make up everything
Charge of Proton
Positive
Mass of Proton
1 a.m.u.
Location of Proton
Nucleus
Change of Neutron
Neutral
Mass of Neutron
1 a.m.u.
Location of Neutron
Nucleus
Charge of Electron
Negative
Mass of Electron
1/1840 a.m.u. (negligible)
Location of Electron
Shells/Orbits
A.M.U.
Atomic Mass Unit
Electronic Configuration
How electrons are arranged
Element in Periodic Table
A
Atomic Number
B
Mass Number
C
Chemical Symbol
Maximum in first shell
2
Maximum in second shell
8
Maximum in third shell
18
Maximum in fourth shell
32
Maximum in fifth shell
50
Atomic Number
How many protons
Atomic Mass Number
How many protons + electrons