The half life of a radioactive element is the amount of time it takes for half of the original amount of the element to decay into a more stable form.
The half life of a radioactive element is measured by observing the rate of decay of the element over time and calculating when half of the original amount has decayed.
The half life of a radioactive element is directly related to its stability. The longer the half life, the more stable the element is, as it takes longer for half of the original amount to decay.
The half life of a radioactive element is a constant property of that element and cannot be changed. It is a fundamental characteristic of the element's atomic structure.
The half life of a radioactive element is important in determining its potential uses. Elements with shorter half lives are often used in medical treatments, while those with longer half lives are used in dating fossils and rocks.