Nitrogen
DIATOMIC NONMETAL
Phase: Gas
Discovered: Daniel Rutherford
Block: P
Summary
Nitrogen is a chemical element with symbol N and atomic number 7. It is the lightest pnictogen and at room temperature, it is a transparent, odorless diatomic gas. Nitrogen is a common element in the universe, estimated at about seventh in total abundance in the Milky Way and the Solar System.
Source: WikipediaPhysical Properties
Atomic Mass 14.007 u
Density 1.251 g/cm³
Melting Point 63.15 K
Boiling Point 77.355 K