What does the term organic compound mean

any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen.

Explanation:

Organic compound, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen.

Explanation:

The few carbon-containing compounds not classified as organic include carbides, carbonates, and cyanides.

Hope this helps

indium, and thallium have three electrons i think