Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 00 Fm + 2 He d. Gamma decay of Aluminum‐27 27m 27 0 13 Al 13 Al + 0 5. Strontium‐90 is a radioactive isotope that is formed in nuclear explosions. The half‐life of strontium‐90 is 28 years. If a soil sample contains 36 pCi of strontium‐90 in 2000, what will be the activity of the strontium‐90 in the soil sample in 2084? First, figure out how many half‐lives:from 2000 to 2084, 3 half lives. At each half life, the activity of the sample decreases by half. First half life: 36/2 = 18 pCi Second: 18/2 = 9 pCi Third: 9/2 = 4.5 pCi 2 of 2...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online