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4 cards from this section. Quick, good the night before a test.
What charge does a proton have?
Remember the role of protons in defining atomic number.
What is the mass of an electron compared to a proton?
Think about how the majority of an atom's mass comes from the nucleus.
What is the charge of a neutron?
Recall that neutrons do not affect the electric charge of an atom.
Isotopes have the same number of protons as their element but a different number of what?
Consider the definition of isotopes we've discussed.
Propose a scenario where the stability of an atom changes due to neutron number variation. Explain its impact on the element.
Think about the relationship between protons and neutrons.
Calculate the ratio of mass of an electron to the mass of a proton and deduce its significance in determining the atomic mass.
Use the mass values given in the section.
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