question 14

Question 14 Not yet answered Marked out of 1.00 Flag question Select from below the one statement that is false. Select one: As a nucleus undergoes radioactive decay, it changes from one element to another. Radioactive materials are always safe after two complete half-lives. Nuclear instability is the cause of radioactivity, which is essentially the emission of particles from the nucleus as it moves from a less to a more stable state. The half-life of a material is the time it takes for approximately half the atoms of a material to undergo radioactive decay. The stability of a nucleus depends on the balance between a number of nuclear forces, including (i) the attractive, short-range 'nuclear force' and (ii) the long-range, repulsive 'coulomb force