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?

10 years is the answer

fe 55.85 g/mol and h2o 18.02 g/mol.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;