Other causes. Chest pain can also be caused by: Panic attack. If you have periods of intense fear accompanied by chest pain, rapid heartbeat, rapid breathing, profuse sweating, shortness of breath, nausea, dizziness and a fear of dying, you may be experiencing a panic attack.
Serum phosphorus is measured in milligrams of phosphorus per deciliter of blood (mg/dL). A normal range is generally 2.4 to 4.1 mg/dL. The normal range varies slightly depending on your age. Itâs natural for children to have higher phosphorus levels because they need more of this mineral to help their bones develop.
Rating Newest Oldest. Best Answer: It depends on which isotope. But since phosphorus has an atomic number of 15, signifying 15 protons in the nucleus, and an atomic mass of 30.97, signifying 31 total nucleons, the average number of neutrons must be 31 - 15 = 16. Most atoms have a number of neutrons that is close to the number of protons. Phosphorus with an atomic mass of 31 is the only isotope that occurs in nature, but heavier phosphorus nuclei have been synthesized in labs.