berkelium
When a radioactive element slowly turns into another element/s when it emits various particles.
The lightest "element" that can undergo radioactive decay is the isotope hydrogen-3, which undergoes beta decay. The lightest element with no radioactively stable isotopes is technetium, and its isotopes have different modes of decay.
Whether an ISOTOPE (not element) is naturally radioactive depends not only on the number of protons, but also on the number of neutrons. For EVERY element, there are radioactive isotopes.There has to be a certain relationship between the number of protons and the number of neutrons, but the relationship isn't a simple one.
Radium. Atomic number 88
Thorium, an element rarely found in some minerals.
berkelium
The answer is Berkelium.
Berkelium
The element with chemical symbol Fm is Fermium. Fermium is a Actinide Transition Metal and has 100 electrons in total. It is synthesised and highly radioactive.
Lawrencium was named after Ernest O. Lawrence, who invented the cyclotron, the first particle accelerator. Lawrencium is a radioactive synthetic element with the symbol Lr and atomic number 103. It was discovered in 1961.
The 103rd element on the periodic table is Lawrencium (Lr). It is a synthetic element and is named after Ernest O. Lawrence, a physicist who invented the cyclotron. Lawrencium is a radioactive element with no stable isotopes.
Mendelevium is a metallic radioactive element that is not found in nature; it therefore has to be synthesised. For example, it can be synthesised by bombarding einsteinium with alpha particles.Fermium, another metallic radioactive element - also not found in nature, has been produced by the radioactive decays of cyclotron-synthesised mendelevium.Note that radioactive decay is not a chemical phenomenon. Decay is the spontaneous process by which an atomic nucleus of an unstable atom loses energy by emitting ionizing particles or radiation. A decay results when an atom with one type of nucleus, called the parent radionuclide, transforms to an atom with a nucleus in a different state, or to a different nucleus containing different numbers of protons and neutrons. Either of these products is called the daughter nuclide. In some decays the parent and daughter are two different chemical elements, the decay process resulting in the creation of the new element (as with mendelevium decaying to fermium).Mendelevium is a chemical element. An element is a pure substance consisting of only one type of atom distinguished by its unique atomic number - the number of protons in its atomic nucleus.A chemical element is, thus, a substance that cannot be broken down or changed into another substance using chemical means.By definition:Mendelevium is a single and unique substance (an element) so, irrespective of its instability, noother chemical substance could be found in it..
Yes, curium is a manmade element produced through nuclear reactions. It was first synthesized in 1944 by researchers at the University of California, Berkeley, as part of the Manhattan Project.
non radioactive element
The element with atomic number 85 in the Periodic Table is Astatine (At). Astatine is the second radioactive element, but is not synthesised. It is part of the Group 17 - Halogens family. It has 85 electrons in 6 shells with 7 electrons in the outer shell.
Yes, that's why they're artificial.
Synthetic elements are unstable chemical elements not naturally found on the earth. They are synthesized in the laboratory. All of them are unstable and radioactive in nature, which means they emit radiations and decay into other elements.