Nitrogen (N) - Element 7 | Properties & Electron Configuration
What is Nitrogen?
Nitrogen (N) is element 7, a nonmetal in period 2, group 15. Its electron configuration is 1s² 2s² 2p³.
| Atomic Number | 7 |
| Symbol | N |
| Atomic Mass | 14.007 u |
| Category | Nonmetal |
| Period | 2 |
| Group | 15 |
| Block | p |
| Electron Configuration | 1s² 2s² 2p³ |
| Short Config | [He] 2s² 2p³ |
| Electronegativity | 3.04 |
| Atomic Radius | 75 pm |
| Ionization Energy | 1402 kJ/mol |
| Electron Affinity | N/A |
| Phase (STP) | Gas |
Electron Configuration
The full electron configuration of Nitrogen is 1s² 2s² 2p³. In noble gas shorthand, this is written as [He] 2s² 2p³.
Nitrogen is a p-block element in group 15, period 2.
Periodic Trends
Electronegativity: Nitrogen has a Pauling electronegativity of 3.04. Within group 15, electronegativity generally decreases down the group.
Atomic Radius: 75 pm. Across period 2, atomic radius generally decreases left to right as nuclear charge increases.
Ionization Energy: 1402 kJ/mol. Ionization energy generally increases across a period and decreases down a group.
View all 118 elements with trend overlays for electronegativity, atomic radius, ionization energy, and electron affinity.
Explore Nitrogen on the Interactive Periodic TableRelated Topics
Phosphorus (P)
Properties of Phosphorus - same group as Nitrogen
Arsenic (As)
Properties of Arsenic - same group as Nitrogen
Antimony (Sb)
Properties of Antimony - same group as Nitrogen
Lithium (Li)
Properties of Lithium - same period as Nitrogen
Beryllium (Be)
Properties of Beryllium - same period as Nitrogen
Boron (B)
Properties of Boron - same period as Nitrogen