google-chrome-stable is available on a 3rd Party Repository: Google Chrome (for Stable).

Follow the instruction for installation:

Add Key:

wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -

Set repository:

echo 'deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main' | sudo tee /etc/apt/sources.list.d/google-chrome.list

Install package:

sudo apt-get update 
sudo apt-get install google-chrome-stable

• https://askubuntu.com/questions/510056/how-to-install-google-chrome