Nanogram [ng]
The nanogram is a metric unit of mass equal to one-billionth of a gram.
Key Facts:
Used in fields like biochemistry, pharmacology, and environmental science to measure extremely small masses (e.g., toxins, DNA quantities)
The prefix "nano-" means 10−9 (one billionth)
Smaller than micrograms and widely used for precision measurements at molecular scales
The nanogram allows scientists to quantify minute amounts of substances with great accuracy.