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An Unknown Element Is Found to Have Three Naturally Occurring

Question 244

Multiple Choice

An unknown element is found to have three naturally occurring isotopes with atomic masses of 35.9675 (0.337%) , 37.9627 (0.063%) , and 39.9624 (99.600%) . Which of the following is the unknown element?


A) Ar
B) K
C) Cl
D) Ca
E) None of the above could be the unknown element.

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