4.4.1.2 - Mass number, atomic number and isotopes
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6 Terms
1
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What is the charge of atoms.
Atoms have no overall electrical charge
2
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Why do atoms have no charge?
As the total number of protons is equal to the total number of electrons
3
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What do all atoms of a particular element have the same?
All atoms of a particular element have the same number of protons
4
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What is an atoms atomic number? (the bottom one)
Atomic number = proton number
5
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What is an atoms mass number? (the top one)
The total number of neutrons and protons
6
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What are isotopes?
Isotopes are atoms with the same number of protons but a different number of neutrons
Note 
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