The half-life of radon is `3.8` days. Three forth of a radon sample decay in.

The half-life of Radon is 3.8 days. Define half-life.

The half-life of radon is 3.8 days. After how many days 19/20 of the sample will decay ?

The half-life of radon is 3.8 days. After how many days 19/20 of the sample will decay ?

The half-life of radon is 3.8 days. Calculate how much radon will be left out of 25 mg after 19 days.

Suppose 3.0 xx 10^7 radon atoms are trapped in a basement at a given time. The basement is sealed against further enetry of the gas. The half - life of radon is 3.83 days. How many radon atoms remain after 31 days?

Suppose 3.0 xx 10^7 radon atoms are trapped in a basement at a given time. The basement is sealed against further enetry of the gas. The half - life of radon is 3.83 days. How many radon atoms remain after 31 days?