The Dangers of Plutonium and Uranium: Unlocking the Secrets of these 'Heavy' Elements

As the world grapples with the challenges of nuclear energy and the threat of nuclear weapons, it is crucial to understand the properties and uses of plutonium and uranium. These elements, often referred to as 'heavy' due to their high number of neutrons and protons in their nuclei, have both practical and hazardous applications. The energy released when they are split, also known as nuclear fission, is harnessed for medical treatment, nuclear power, and even bombs. However, the unstable nature of these elements makes them extremely hazardous to handle, with the potential to cause widespread damage and harm to human health.

Key Takeaways:

• Plutonium is a highly hazardous element, capable of igniting when exposed to air, and can seriously damage human health if ingested or inhaled.
• Uranium is found in low concentrations worldwide, with richer seams from which uranium ore can be extracted, but requires enrichment to produce usable fissile material.
• Plutonium 239, a product of neutron bombardment of uranium 238, has a half-life of 24,000 years, making long-term storage a significant challenge.
• The critical mass of 5kg of plutonium 239 can initiate a chain reaction, leading to a nuclear explosion, or can be controlled for use in nuclear power reactors.
• The transportation of plutonium, whether as a solid, liquid, or gas, poses significant health risks, including cancer and tissue damage.
• There are at least 200 tons of plutonium worldwide, with significant amounts stored in Britain, highlighting the need for safe storage and handling.
• Recent incidents, including the seizure of plutonium and highly-enriched uranium in Germany, demonstrate the ongoing risk of nuclear material being trafficked and used illicitly.

Statistics:

• The half-life of plutonium 239 is 24,000 years.
• The critical mass of plutonium 239 required to initiate a chain reaction is 5kg (or a lump the size of a grapefruit).
• There are at least 200 tons of plutonium worldwide.
• Plutonium in the bloodstream can seriously damage tissue, and is agreed by all to be cancer-causing.
• The energy released from nuclear fission is harnessed for medical treatment, nuclear power, and even bombs.
• The daughter products from plutonium decay add up to slightly less mass than the original, with some of the original mass converted to energy.

Sources:

• Byline: TIM RADFORD
• What are plutonium and uranium?
• , (original article)