Which Among the Following Represent a Set of Isotopes? Atomic

question 51

Multiple Choice

Which among the following represent a set of isotopes? Atomic nuclei containing:
I.20 protons and 20 neutrons
II.21 protons and 19 neutrons
III.22 neutrons and 18 protons
IV.20 protons and 22 neutrons
V.21 protons and 20 neutrons

• A)I,II,III
• B)III,IV
• C)I,V
• D)I,IV and II,V
• E)No isotopes are indicated.

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