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What subatomic particles are found in the nucleus?
What charge is the nucleus?
Where are electrons found?
What's the relative mass and charge of a proton?
What's the relative mass and charge of a neutron?
What's the relative mass and charge of an electron?
Why are atoms neutral?
Why are ions charged?
What does the atomic number tell you?
What does the mass number tell you?
How do you calculate the number of neutrons in an atom?
