Curium isotopes
It is not yet discovered since all of the uranium isotopes are having half life for several millions of years. We would be able to find it after atleast 700 millions of years.
Alpha decay occurs when thorium-231 undergoes radioactive decay to form protactinium-231. In alpha decay, a nucleus emits an alpha particle (two protons and two neutrons) to transform into a nucleus with a lower atomic number.
Polonium is a radioactive element that emits alpha particles, which do not penetrate far through matter. Therefore, the light transmission of polonium is minimal, as it does not allow light to pass through it easily due to its dense nature and high radioactivity.
Protactinium-231 emit alpha particles, gamma radiations, X-rays.
Uranium-238 emits alpha radiation; its half-life is 4,468×109 year.
Thorium-230 decays into radium-226 when it emits an alpha particle.
The nuclear reaction is: 232Th--------------- 228Ra + α
When radium (Ra) emits an alpha particle, it transforms into radon (Rn). This process is also known as alpha decay, where an alpha particle is released from the nucleus of the radium atom, resulting in the formation of a new element.
When an atom emits an alpha particle, it loses two protons and two neutrons from its nucleus. This results in a new element being formed with an atomic number that is two less than the original element.
It drops 2
When U-238 emits an alpha particle, it loses two protons. This results in the atom transforming into a different element (Th-234) which has two fewer protons in the nucleus.
Lead-209 will be left over after the isotope bismuth-213 undergoes alpha decay, as the emission of an alpha particle causes the atomic number of the element to decrease by 2. Bismuth-213 has an atomic number of 83, so after the emission of an alpha particle (which has an atomic number of 2), the resulting element will have an atomic number of 81, which corresponds to lead.
This process is known as alpha decay. During alpha decay, an unstable atomic nucleus emits an alpha particle, which consists of two protons and two neutrons. This emission results in the transformation of the original nucleus into a new, lighter element with a lower atomic number.
When a radioactive nucleus emits an alpha particle, it decreases by two protons and two neutrons. This results in a new nucleus with a lower atomic number by 2 and lower mass number by 4. The emitted alpha particle is a helium nucleus (2 protons and 2 neutrons) and carries a positive charge.
During alpha emission, a radioisotope emits an alpha particle, which is composed of two protons and two neutrons. This reduces the atomic number of the parent isotope by 2 and the atomic mass by 4. The emission of an alpha particle transforms the parent isotope into a new element.
4 from the alpha. Betas have negligible mass and gammas have no mass.
When thorium-230 decays by emitting an alpha particle, it transforms into radium-226. This decay process reduces the mass number by 4 and the atomic number by 2.