Question

State two reasons for late discovery of Noble Gases?Pls answer ASAP..

Answer 1

less concentration in the atmosphere

not reactive to form compounds

hope this helps

brainliest plz

Answer 2

HEY MATE HERE'S YOUR ANSWER ;

Noble gases share many similar properties including:

A full outer shell of electrons. ...Because of their full outer shells, they are very inert and stable. ...They are gases under standard conditions.They are colorless and odorless.Their melting and boiling points are close together giving them a very narrow liquid range.