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What do all atoms of the same element have in common? А. atomic mass B. mass number C. number of neutrons D. atomic number
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What do all atoms of the same element have in common?

А. atomic mass
B. mass number
C. number of neutrons
D. atomic number

User Mcsky
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1 Answer

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5 votes
D. Atomic number

All atoms of the same element have the same number of protons in the nucleus and consequently have the same atomic number.
User Matthieu Charbonnier
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