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

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 . 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?

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

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