Can you give examples of bad using radioactive elements ?

In early ninetees it was used as a paint in watch factories.

It was necessary to redeem the world and he knew that his son was the only way

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.