The half-life of radium is 1500 years. After how many years will one gram of the pure radium
(i) reduce to one centigram ?
(ii) lose one milligram ?

The half-life of radium is 1600 years. After how many years will one gram of the pure radium be reduced to one centigram?

The half life of radium is 1500 years. After how many years will one gram of pure radium (i) reduce to 1 centigram? (ii) lose one milligram?

The half life of radium is 1600 years. In how many years will one gram of pure radium be reduce to one centigram?

(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?

The half-life of radium is 1500 years . In how many years will 1 g of pure radium be reduced to one centigram?

The half-life of radium is 1500 years . In how many years will 1 g of pure radium be reduced to one centigram?

Half-life of radium is 1500 y. In how many years will 1 g of pure radium reduce by 1 mg ?