Lead is most commonly used for protecting people from radioactive substances.
For example, if you go to the dentist and they give you an X-ray of your teeth, they will usually give you a lead bib to protect you from the radiation produced by the X-ray. However, carbon (graphite usually) can also be used to shield, but whereas a plate of lead may work it would take a brick of graphite.
Usually lead is used for shielding, however I believe Boron is used to in a sense "neutralize" radioactive material. I believe this was discussed in possible solutions for Fukashima
Lead is most commonly used for this. An example is the lead jacket the put over you when you get an x-ray at the dentists'.
Lead is commonly used as a shield to protect people from radioactive substances. It is dense, so it effectively absorbs and blocks the radiation, helping to minimize exposure to harmful radiation._lead
An element is a pure material substance, a convention is a meeting of people.
Thorium can be dangerous, especially when powders are inhaled, because is a radioactive element.
Lead
Lead
The most used is lead.
Radioactive elements are unstable and will decay into other elements in a decay chain. Non-radioactive elements are stable and won't commence into radioactive decay. Radioactive elements can be found from atomic number 84 onwards.
* Alpha radiation can be stopped by a sheet of card * Beta radiation can be stopped be a few inches of aluminium * Gamma radiation can be stopped by several inches of lead or many feet of concrete.
Many people do to determine which element is in a substance ex: me, scientists
it is just radioactive ok hesh people