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Chemistry, 17.10.2019 13:30 jovonjones1234
An atom with 9 protons and 10 neutrons in its nucleus and 9 electrons in movement around the nucleus would be an atom of which element?
a: beryllium
b: neon
c: fluorine
d: potassium
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An atom with 9 protons and 10 neutrons in its nucleus and 9 electrons in movement around the nucleus...
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