Chemical Elements.com - Nitrogen (N)

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Basic Information

Name: Nitrogen
Symbol: N
Atomic Number: 7
Atomic Mass: 14.00674 amu
Melting Point: -209.9 °C (63.250008 K, -345.81998 °F)
Boiling Point: -195.8 °C (77.35 K, -320.44 °F)
Number of Protons/Electrons: 7
Number of Neutrons: 7
Classification: Non-metal
Crystal Structure: Hexagonal
Density @ 293 K: 1.2506 g/cm³
Color: colorless

Atomic Structure

Number of Energy Levels: 2

First Energy Level:

Second Energy Level:

Isotopes

Isotope	Half Life
N-13	9.97 minutes
N-14	Stable
N-15	Stable
N-16	7.13 seconds

Facts

Date of Discovery: 1772
Discoverer: Daniel Rutherford
Name Origin: Greek
Uses: forms most of atmosphere
Obtained From: from liquid air

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