The isotope 208Tl undergoes Î² decay with a half-life of 3.1 min.

(a) What isotope is produced by the decay?

(b) How long will it take for 99.0% of a sample of pure 208Tl to decay?

(c) What percentage of a sample of pure 208Tl remains un-decayed after 1.0 h?

Question

Codi

16 July, 08:30

+1

Answers (1)

Know the Answer?

Josephine Valencia · Answer 1

a. Pb 208

b. About 21.7 minutes

c. only a trace amount

Explanation:

It under goes beta decay.

There should be virtually nothing after an hour

The isotope 208Tl undergoes Î² decay with a half-life of 3.1 min.(a) What isotope is produced by the decay?(b) How long will it take for 99.0% of a sample of pure 208Tl to decay?(c) What percentage of a sample of pure 208Tl remains un-decayed after 1.0 h?