Chapter 8: From Physics to Biology
"The Disappearing Spoon"
Period number- 5
Electron Configuration- [Kr] 4d55s2
Element Classification- Metal
It is not naturally occurring, it was isolated by Carlo Perrier and Emilio Segre by bombarding molybdenum atoms with deuterons.
History and Uses- Technetium can be used used in small amounts to slow down the rate the rate at which steel corrodes, as medical tracer, and be used to calibrate particle detectors.
Unique Characteristics- it is radioactive.
Period Number- 7
Group Number- None
Electron Configuration- [Rn] 5f46d17s2
Element Classification- metal
It is not naturally occurring. It was made by bombarding Uranium with neutrons.
History and uses- no main uses
Unique characteristics- It is radioactive.
Electron Configuration- [Ne] 3s23p3
Element Classification- non-metal
Naturally occurring in urine and found in phosphate rock.
History and uses- White phosphorus is used as a chemical weapon and is poisonous. Red phosphorous is used in matches. Black phosphorus has no uses.