chapter 2. in this unit we need to be familiar with this type of symbol
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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
Particle Symbol Charge Mass (amu) Location
Proton
Neutron
Electron
Calculate the average atomic mass of magnesium given the following information:
Mg, mass = 23.98 amu; percent abundance = 78.99%
Mg, mass = 24.98 amu; percent abundance = 10.00%
Mg, mass = 25.98 amu; percent abundance = 11.01%
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