What is the atomic number for soft tissue?

The atomic number related to soft tissue is 7, as it corresponds to nitrogen, which is a significant component of the soft tissues in the human body. Soft tissues primarily consist of proteins, nucleic acids, and other organic compounds, many of which contain nitrogen atoms. Elements with lower atomic numbers tend to be found in simpler organic compounds, while higher numbers represent heavier elements or heavier isotopes that are not found as abundantly in soft tissues. Thus, recognizing that nitrogen's atomic number is 7 helps link it directly to the composition of soft tissue. This understanding is critical in radiography, as the atomic number influences how tissues absorb and scatter X-rays, impacting image contrast and quality.