On Earth, the element forms about 77% of its atmosphere and as such is the most abundant pure element. Nitrogen is transparent, colourless, odourless, tasteless gas. So, human senses cannot detect it. Its density is almost same as that of air ( air is 78% Nitrogen). Its density is 1.25*10-3 g.cm-3 versus 1.28*10-3 g.cm-3 of air. […]