Multiple Choice
Which pair of neutrons and protons correspond to the isobars of Ar and Ca, which have a mass number of 40?
A) Ar: 18 protons and 22 neutronsCa: 20 protons and 20 neutrons
B) Ar: 18 protons and 22 neutronsCa: 20 protons and 22 neutrons
C) Ar: 20 protons and 20 neutronsCa: 18 protons and 22 neutrons
D) Ar: 22 protons and 18 neutronsCa: 20 protons and 20 neutrons
Correct Answer:

Verified
Correct Answer:
Verified
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