Chapter 2. In this unit we need to be familiar with this type of symbol.

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Presentation transcript:

Chapter 2

In this unit we need to be familiar with this type of symbol

Includes an element name a - and a number Example: Sulfur – 32 This sulfur atom has an atomic mass of 32 Since Sulfur has ______ protons & electrons It also has ______ neutrons

ParticleSymbolChargeMass (amu)Location Proton Neutron Electron

Calculate the average atomic mass of magnesium given the following information: Mg, mass = amu; percent abundance = 78.99% Mg, mass = amu; percent abundance = 10.00% Mg, mass = amu; percent abundance = 11.01%