Are non metals conductors or insulator give two examples of non metals that are conductors?

Answer 1

Non metals are generally poor conductors of electricity and heat, meaning they are insulators. However, there are a few non metals that can conduct electricity to some extent under certain conditions. Two examples of non metals that are conductors are:

1. Graphite: Although graphite is composed of carbon atoms, which is a non metal, it exhibits semi-conducting properties. It can conduct electricity along its planes due to the delocalization of electrons, making it a good conductor for low-voltage applications.

2. Selenium: Selenium is a non metal that can also conduct electricity, but it is a much poorer conductor compared to metals. It is often used in certain photocopiers and photovoltaic cells due to its photoconductivity properties.