Illustrated Glossary of Organic Chemistry

Cyclopentane: A cycloalkane of molecular formula C5H10, consisting of five methylene groups forming a ring. Cyclopentane is most stable in its so-called "envelope" conformation (as shown in the ball and spoke model below).

Molecular Structure of Cyclopentane

Kekule structure
Bond-line structure
Ball and spoke
Space filling model
Molecular model kit