# What is the condensed structural formula for an alkane with four carbon atoms?

Jan 10, 2016

There are two possible structures.

#### Explanation:

One has a chain of four carbon atoms.

${\text{CH"_3"CH"_2"CH"_2"CH}}_{3}$

The other has three ${\text{CH}}_{3}$ groups on a central carbon atom.

("CH"_3)_3"CH" or, if you prefer, ${\text{CH"_3"CH"("CH"_3)"CH}}_{3}$