4 ms·
It is continuously formed by the decay of Thorium and Uranium.
by deepspace 3y ago
It is continuously formed by the decay of Thorium and Uranium.
- bell-cot 3y agoHere's a radioactive decay chain showing that: https://upload.wikimedia.org/wikipedia/commons/thumb/6/65/Decay_chain%284n%2B2%2C_Uranium_series%29.svg/350px-Decay_chain%284n%2B2%2C_Uranium_series%29.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/6/65/De...