Alpha emission means a He (A=4, Z=2) core is released along with energy. Helium's atomic number is 2 and the Atomic Mass is 4. So when Thorium (A=x, Z=90) emits an alpha particle it becomes a Radium (A=x-4, Z=88). By the way: Thorium is very vague when it comes to nuclear physics. It's important to state the atomic mass of the atom. There exist many forms of each element, called isotopes.
alpha particles.
When a Uranium-238 emits an alpha particle, it loses 2 protons and 2 neutrons. The resulting nucleus, Thorium-234, has 90 protons.
Alpha particles but also electrons and gamma radiations (Th 232).
When an alpha particle emitter, such as uranium or thorium, emits an alpha particle, it consists of two protons and two neutrons. When this particle encounters a helium nucleus inside the jar, which also contains two protons and two neutrons, they can combine to form a helium atom. This process results in the formation of helium within the jar.
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.
Thorium-230 decays into radium-226 when it emits an alpha particle.
The nuclear reaction is: 232Th--------------- 228Ra + α
Uranium-235 decays primarily through alpha decay, where it emits an alpha particle (helium nucleus) and transforms into thorium-231.
alpha particles.
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.
When a Uranium-238 emits an alpha particle, it loses 2 protons and 2 neutrons. The resulting nucleus, Thorium-234, has 90 protons.
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.
When californium emits an alpha particle, it creates curium.
The nuclear reaction is: 232Th--------------- 228Ra + α
You get this answer by performing the following: Mass # Mass # 4 Atomic # Parent symbol -> Atomic # Daughter symbol + 2 He 238 234 4 92 U -> 90 Th + 2 He Both sides must equal the same thing, so if you figure out what plus 4 = 238 and what plus 2 = 92, you can figure out the element is formed through decay. The resulting element in this case is Thorium.
This is an alpha decay.The half-life of uranium-238 is 4,468.10ex.9 years.
It drops 2