particle

The bad news about lead is that it binds to soil particles, he said.

That could store more carbon deep in the ocean, as the particles sink from the surface.

The experiment involved bombarding a thin sheet of gold foil with alpha particles, and earned Rutherford, from Bridgewater on New Zealand's South Island, the moniker the "father of nuclear physics".

The cases above illustrate dramatic instances of the condition known as argyria, in which silver particles accumulate in the body.

Do not sweep, dust or use a regular vacuum to clean up the ash particles.