What is the atomic mass of nitrogen?

The atomic mass of nitrogen is approximately 14.01 atomic mass units (amu). This value reflects the average mass of nitrogen atoms, taking into account the natural abundance of its isotopes.

Understanding Atomic Mass

Atomic mass is a weighted average that considers both the mass and the relative abundance of an element's isotopes. For nitrogen, the most common isotope is nitrogen-14, which contributes significantly to its overall atomic mass.

Isotopes of Nitrogen

• Nitrogen-14: The most abundant isotope, making up about 99.6% of nitrogen found in nature.
• Nitrogen-15: A stable isotope that accounts for about 0.4% of natural nitrogen.

These isotopes help explain why the atomic mass is not a whole number, as it reflects the average based on their relative proportions. Understanding atomic mass is essential in fields like chemistry and physics, where it plays a crucial role in calculations and reactions.