Benedict solution sorry if it isn’t the right answer
Stable elements are those which have atleast one isotope with no tendency to "decay", i.e., change into anotherelement.
<span>The Kinetic Theory of Matter states that matter is composed of a large number of small particles—individual atoms or molecules—that are in constant motion. This theory is also called the Kinetic-Molecular Theory of Matter. A simplified version of the theory is the Kinetic Theory of Gases.</span>