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Atoms (Challenge)
Structure of the Atom
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A | B |
Electron | Negatively Charged |
Proton | Positively Charged |
Number of Protons | Atomic Number |
Number of Protons + Number of Neutrons | Mass Number |
Nucleus | Core of the Atom |
Smallest known elementary particles of matter | Quarks |
Same number of protons and different number of neutrons | Isotopes |
Opposite Charges | Attract |
Like Charges | Repel |
Atom | Electrically Neutral |
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