Given the following: 41
19 X, 39
19 X, 41
20 X, and 39
18 X. Which are isotopes of each other?
A) 41
19 X and 41
20 X are isotopes of each other; and 39
19 X and 39
18 X are isotopes of each other.
B) 41
19 X and 39
19 X are isotopes of each other.
C) 41
19 X, 39
19 X, 41
20 X, and 39
18 X are isotopes of each other.
D) None are isotopes of each other.
Correct Answer:
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