The barium isotope
^(131)Bahas a half-life of 12 days. A
270\mu gsample of
^(131)Bais prepared. Correct Correct answer is shown. Your answer
254.6\mu gwas either rounded differently or used a different number of significant figures than required for this part. Part B What is the mass of
^(131)Baafter 10 days? Express your answer with the appropriate units. Correct Correct answer is shown. Your answer
152.3\mu gwas either rounded differently or used a different number of significant figures than required for this part. Part C What is the mass of
^(131)Baafter 100 days? Express your answer with the appropriate units.
