Atomic mass and mass number
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8 Terms
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What does the atomic mass tell us?
The number of protons in the nucleus of an atom
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What are atoms?
Neutral
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What does the atomic number also give us?
The number of electrons in an atom
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What does the atomic number identify?
Which element is present
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What does the mass number equal?
The number of protons and neutrons in the nucleus of an atom
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What is not involved in the mass number?
Electrons because they are considered to have a negligible mass
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What can you work out if you know the atomic number and mass number of an atom?
The number of protons, neutrons and electrons
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Atoms have the same number of ?
Protons and neutrons
Note 
Flashcards (74)