18 The density of a noble gas at STP is 1784 gL Identify the

18. The density of a noble gas at STP is 1.784 g/L. Identify the noble gas. a. Xe b. Ne c. Kr d. Ar

Solution

Ar is the nobel gas which has density of 1.784 g/dm³

(1dm³=1L)

Nobel gasses have weak forces of attraction,so their molecules remains at large distance than other elements

So in a definite volume they have small mass

So their density is very low.