Pnictogen

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A pnictogen is one of the chemical elements in group 15 of the periodic table, ometimes referred to as the nitrogen family.

Elements in the pnictogen group

Nitrogen

Nitrogen, atomic number 7, is a colorless gas, practically non-reactive at room temperature.

Phosphorus

Phosphorus, atomic number 15, is a solid element, which comes in several distinct allotrope forms.

Arsenic

Arsenic, atomic number 33, is a toxic metalloid, with a variety of uses in chemistry.

Antimony

Antimony, atomic number 51, is a silvery metal or metalloid, commonly encountered in alloys, usually with lead. It has several allotrope forms.

Bismuth

Bismuth, atomic number 83, is the most diamagnetic metal and although considered stable, it is slightly radioactive, with a half life estimated to be (1.9 +/- 0.2 ) x 1019 years.

Moscovium

Moscovium, atomic number 115, is a radioactive element first synthesized in 2003, with the most stable isotope, moscovium-290, having a half-life of 0.8 s.

Properties

Chemical

Pnictogens display the oxidations states of 3 and 5.

Physical

Nitrogen is a gas, phosphorus is a solid non-metal, arsenic and antimony are metalloids, while bismuth is a dense metal.

Safety

Arsenic is very toxic, while antimony displays moderate toxicity.

References

Relevant Sciencemadness threads