Which of the following pairs are isotopes?
A) (Ca+2 and Mg+2)
B) (199Hg and 200Hg)
C) (18O and 19F)
D) (238U and 238Np)
Correct Answer:
Verified
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A)
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A)(Ca+)
B)(Cl2-)
C)(Ar-)
D)(P3-)
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