If you start with 6.5 x 10^10 I-131 atoms, how many are left after approximately 1 month? I -131 has a half-life of 8.0 days.

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions

Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon

Why dose heating increase the speed at which a solution dissolved in water