How to deactivate facbook account ?

Click your profile picture in the top right of Facebook.

Select Settings and privacy, then click Settings 

 Click Accounts Centre in the top left of your screen.

Click Personal details, under Account settings.

Click Account ownership and control.

Choose the account or profile that you want to deactivate.

Select Deactivate account.

Click Continue, then follow the instructions to confirm 

Your account is deactivated.