15.1 Introduction to Nuclear Chemistry

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Chad's High School Chemistry Master Course

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VARIOUS PARTICLES / RAYS
Particle/Ray Symbol Mass Charge
Alpha particle 4.00151amu +2
Neutron 1.00866amu 0
Proton 1.00728amu +1
Beta Particle 0.00015amu -1
Positron 0.00015amu +1
Gamma Ray 0 0

The Nucleus

Nuclear Structure – protons and neutrons

Atomic Number – number of protons or charge

Atomic Weight vs Mass Number

Isotopes – same element but different mass number

Strong Nuclear Force – binds protons and neutrons together

mass and atomic numbers

Balancing Nuclear Reactions

The total mass number and atomic number (i.e. charge) must be equal on both sides of the reaction arrow.

balancing nuclear reactions 01
balancing nuclear reactions 02