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What forms when uranium 235 undergoes alpha decay?
Alpha decay is basically a helium atom, so 235-4= 231. And 92-2=90 (Uranium's atomic number minus helium's). The element with atomic number 90 is Thorium. The mass is 231, so you should have Th-231 (Thorium-231).
When uranium undergoes alpha decay it becomes an isotope of thorium. Which notation indicates the thorium isotope produced?
When uranium undergoes alpha decay, it emits an alpha particle (which is equivalent to a helium nucleus, ( ^4_2He )), resulting in a decrease of its atomic number by 2 and its mass number by 4. For example, if uranium-238 (( ^{238}{92}U )) undergoes alpha decay, it transforms into thorium-234 (( ^{234}{90}Th )). Thus, the notation for the thorium isotope produced is ( ^{234}_{90}Th ).
Determine what type of decay occurs when thorium-231 undergoes radioactive decay to form protactinium-231?
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.
What happens to thorium when it emits an alpha particle?
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.
What product is produced when 232 90 Th undergoes alpha decay?
90Th232 undergoes alpha decay to form 88Ra228. Remember, in alpha decay, a helium nuclei is emitted, comprising two protons and two neutrons. As a result, the atomic number goes down by 2, and the atomic mass number goes down by 4.
What is the alpha decay of the Thorium isotope Th 232?
Seems some mistake in printing the mass number of thorium. It has to be 227. No Th-225 is available as far as the tables have been analysed. When a alpha particle comes out then the atomic number of parent is reduced by 2 and its mass number will be reduced by 4. So in case of Th-227, it gets changed to Ra-223 after the emission of an alpha particle.
What type of radioactive decay resulted in uranium-238 becoming thorium-234 and how do you know?
This is alpha decay.If you notice carefully, uranium has 238 atomic wt. and on decaying becomes thorium with atomic wt. of 234. hence it lost atomic wt. of 4. He, which is released in alpha decay, has atomic no. of 4. Hence, if uranium decayed into Helium and Thorium, it will undergo Alpha Decay
When thorium decays by emmitting an alpha particle what is the atomic number of the resulting nucleus?
88Ra, Radium
Uranium -238 undergoes alpha decay Therefore uranium -238 will?
Uranium 238 is transformed in thorium 234 by alpha decay.
When uranium-238 atomic number 92 decays by emitting an alpha particle it becomes?
When uranium-238 (atomic number 92) decays by emitting an alpha particle, it transforms into thorium-234 (atomic number 90) because an alpha particle contains two protons and two neutrons, reducing the atomic number by two.
What happens when Fr-223 undergoes alpha decay?
When Fr-223 undergoes alpha decay, it emits an alpha particle consisting of two protons and two neutrons. This transforms the nucleus into a different element with atomic number decreased by 2 and atomic mass number decreased by 4.
What happens to the atomic number of an atom undergoing alpha decay?
The atomic number of an atom undergoing alpha decay decreases by 2. Not asked, but answered for completeness, the atomic mass number decreases by 4.
