wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
sudo add-apt-repository "deb http://dl.google.com/linux/chrome/deb/ stable main"
sudo apt update
sudo apt install google-chrome-stable
rm linux_signing_key.pub
Source: Install Chrome on Linux Mint – Easy Step-By-Step Guide