How many nonmetals are gases?
There are a total of 11.
The six noble gases.
Nitrogen, Oxygen, Fluorine, Chlorine
You should check out: http://www.ptable.com/#Writeup/Wikipedia
The gases have their element symbols shown in red.
If you click on properties and select the radio button for State at 273K the state of matter will display for each element.
It's a pretty cool website all chem students should use! No, they aren't paying me anything to write that. But it would be nice...