The half-life period of radium is 1600 years. Calculate the disintegrationd of radium.

The half-life of radium is 1550 years. Calculate its disintegration constant (lamda)

The half-life period of radium is 1600 years. The fraction of a sample of radium that would remain after 6400 years is.

The half-life period of radium is 1600 years. The fraction of a sample of radium that would remain after 6400 years is.

The half-life of radium is 1600 years . Calculate the number atoms that will decay from 1g sample of radium per second (given, atomic weight of radium = 226)