Solved

${ }_{20}^{40} \mathrm{Ca}$ Contains How Many Neutrons?
A)20
B)40
C)60
D)None of the

Question 60

Multiple Choice

${ }_{20}^{40} \mathrm{Ca}$ contains how many neutrons?

A) 20
B) 40
C) 60
D) None of the above.

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