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

Radon has 3.8 days as its half-life . How much radon will be left out of 15 mg mass after 38 days ?

The half life of Radon is 3.8 days. Calculate how much of 15 milligram of Redon will remain after 38 days.

The half-life of ""_(72)Au^(198) is 2.7 days. How much Au will be left out of 100 mg after 16.2 days'?

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. After how many days will only one twentieth of radon sample be left over?

The half life of radon is 3.8 days . After how many days will only one twentieth of radon sample be left over ?

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

The half-life period of radon is 3.8 days. After how many will only one-twentieth of radon sample be left over?

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?

(a) The half life period of radium is 1590 yrs. After how many years will one gram of the pure element, (i)be reduced to one centigram, (ii) lose one centigram. (b) The half life of radon is 3.8 days. After how many days will only one twentieth of radon sample be left over? (c) 1 gm of radioactive substance takes 50 sec. to lose 1 centigram. Find its half life period?