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Atoms of a Given Element Have a Defined Number of Protons

Question 256

Multiple Choice

Atoms of a given element have a defined number of protons, neutrons, and electrons, but atoms can gain or lose electrons to form ions.  How many neutrons and electrons are present in a 80Se2− ion formed from a neutral selenium-80 atom?


A) 80 neutrons and 36 electrons
B) 46 neutrons and 36 electrons
C) 34 neutrons and 34 electrons
D) 46 neutrons and 34 electrons

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