The isotope 234 Th.
Radon-222 undergoes alpha decay to produce polonium-218as a daughter.
decays
The heaviest of all elements are formed by bombardment of two ions into each other ( eg Zinc and Lead) which then forms a highly unstable heavy element that very rapidly decays into smaller elements.
bismuth 210 decays by beta decay to polonium 210 that decays by alpha decay to lead 206
Alpha and beta decays.
humus
The isotope 234 Th.
expon 131
Uranium 238 is bombarded by neutrons, and forms Neptunium 238. Neptunium decays to form Plutonium 238.
Uranium 238 is bombarded by neutrons, and forms Neptunium 238. Neptunium decays to form Plutonium 238.
The question does not make sense. A neutron is neutral NOT positive. When a neutron decays, it forms a positively charged proton and a negatively charged electron and an antineutrino.
Carbon-14 decays by beta-, which emits a W- boson that immediately decays into an electron and an electron anti-neutrino.
When an element "decays", it forms a different element. This is the definition of "decay" when referring to radioactive elements.
Radioactive elements have unstable nucleii. When an unstable nucleus decays it emits energy in the form of electromagnetic waves and heavy particles and in the process forms new nucleii.
When a mineral spontaneously decays into subatomic particles, it has this property
Radon-222 undergoes alpha decay to produce polonium-218as a daughter.