The nuclear binding energy for thorium-234 is approximately 8.5 million electron volts (MeV).
Thorium 230 is an alpha emitter with half life 75,380 years. Therefore it is dangerous if ingested. Alpha particles don't penetrate the skin, so it would not be dangerous to handle carefully, but if ingested alpha particles can damage internal organs. Thorium 234 is a beta emitter with half life 24.1 days. So 230 is the more dangerous.
The decay product of uranium 238 by alpha disintegration (not beta or gamma) is thorium 234.
When thorium-234 undergoes beta decay, a neutron in the nucleus is converted into a proton, resulting in the formation of protactinium-234, with atomic number 91.
The possible products of the alpha decay of uranium-238 are thorium-234 and helium-4. During alpha decay, the uranium nucleus releases an alpha particle (helium nucleus) and transforms into thorium-234.
For decays by alpha emission use the general formula: A/Z X --> 4/2 He + A-4/Z-2 Y *Where A is atomic mass and Z is atomic number. So for U-238 238/92 U --> 4/2 He + 234/90 Th
Thorium-234 does not decay into Protactinium-234. Instead, Thorium-234 naturally decays by alpha emission to Protactinium-230. The difference in decay modes is due to variances in their nuclear structures and energetics.
In beta decay of thorium-234, a neutron in the nucleus of thorium-234 is transformed into a proton, releasing an electron (beta particle) and an antineutrino. This process converts the thorium-234 nucleus into protactinium-234.
These are all phenomenons in nuclear physics.
daughter element
Thorium-234 don't emit alpha particles.
Become thorium-234 after ejecting an alpha particle and gamma ray. The thorium-234 continues to decay through 13 more decay events, ultimately becoming lead-126.
25 grams of Thorium-234
Thorium-234 does not change into Uranium-234. Thorium-234 undergoes radioactive decay to form Protactinium-234, which then decays to form Uranium-234. This process happens over multiple steps through alpha and beta decay mechanisms.
After 96 days, there would be approximately 1 gram of Thorium-234 left from the initial 4 grams. Thorium-234 has a half-life of 24.1 days, so after each half-life, the amount of Thorium-234 would be halved.
Uranium 238 goes through a decay series until it becomes lead. An intermediate product of this decay series is Thorium 234. Uranium 238 decays into an atom of Thorium 234 and an atom of Helium 4. The Helium 4, being a gas, frequently escapes into the atmosphere. Since the decay of Uranium 238 into Thorium 234 and Helium 4 gives off heat and mass, nature does not normally reverse the process.
Thorium-234 has a half-life of 24.1 days. How much of a 100-g sample of thorium-234 will be unchanged after 48.2 days?
234 is the mass of that particular Uranium isotope. Exactly 234,040 952 088 ± 0,000 001 960 u.a.