European Union that consider and evaluate. the health impact of all policy, not just. health policy. â¢ Social and economic policy can present. alternatives to increased health care spending. for maintaining and improving health.
One type of natural transmutation observable in the present occurs when certain radioactive elements present in nature spontaneously decay by a process that causes transmutation, such as alpha or beta decay. An example is the natural decay of potassium-40 to argon-40, which forms most of the argon in the air.
Nuclear transmutation is the conversion of one chemical element or an isotope into another. Because any element (or isotope of one) is defined by its number of protons (and neutrons) in its atoms, i.e. in the atomic nucleus, nuclear transmutation occurs in any process where the number of protons or neutrons in the nucleus is changed.