In which of the following will isotopes of an element always differ?

a. number of protons
b. number of electrons
c. atomic mass
d. atomic number
e. None of the listed responses is correct.


Answer: c. atomic mass

Biology & Microbiology

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a. ecology. b. taxonomy. c. systematics. d. evolutionary biology. e. biological classification.

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A) Herbivore B) Omnivore C) Carnivore D) Ruminant

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