Oxygen (O)

Oxygen (O)


Atomic Number: 8

Atomic Weight: 15.9994

Melting Point: 54.36 K (-218.79°C or -361.82°F)

Boiling Point: 90.20 K (-182.95°C or -297.31°F)

Density: 0.001429 grams per cubic centimeter

Phase at Room Temperature: Gas

Element Classification: Non-metal

Period Number: 2

Group Number: 16

Group Name: Chalcogen

All three Oxygen isotopes have medical applications. O-16 is used in the production of radioactive N-13 which is used for PET imaging and myocardial perfusion. O-17 can be used as a tracer in the study of cerebral oxygen utilization. Large quantities of O-18 are used for the production of F-18. F-18 is used to produce 2-[18F]fluoro-2-deoxyglucose (FDG) which is used as a tracer in positron emission tomography or PET. Millions of these FDG-PET medical procedures are performed annually to investigate a range of diseases in various human organs.

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