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Sodium 24 is a radioactive isotope with a half-life of 14.8horus. Calculate:
A) The decay constant of the isotope.
B) The number of atoms in a 1.0mg sample of this isotope.
C) The activity of the 1.0mg pure sample of the isotope.
D) The activity of such a sample exactly 24 hours later.
Update: CALCIUM 43 IS AN ISOTOPE WITH A HALF LIFE OF 22 DAYS. CALCULATE THE DECAY CONSTANT, ACTIVITY OF 2.3MG SAMPLE AND ACTIVITY 48 HOURS LATER
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