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Pnictogen

Pnictogens
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson
carbon group ←    → chalcogens
IUPAC group number 15
Name by element nitrogen group
Trivial name pnictogens, pentels
CAS group number
(US, pattern A-B-A)
 VA
old IUPAC number
(Europe, pattern A-B)
 VB
↓ Period
2
Image: Liquid nitrogen being poured
Nitrogen (N)
7 Other nonmetal
3
Image: Some allotropes of phosphorus
Phosphorus (P)
15 Other nonmetal
4
Image: Arsenic in metallic form
Arsenic (As)
33 Metalloid
5
Image: Antimony crystals
Antimony (Sb)
51 Metalloid
6
Image: Bismuth crystals stripped of the oxide layer
Bismuth (Bi)
83 Other metal
7 Moscovium (Mc)
115 other metal

Legend

primordial element
synthetic element

The pnictogens[1] (/ˈpnɪktədʒən/ or /ˈnɪktədʒən/; from Ancient Greek: πνῑ́γω "to choke" and -gen, "generator") are the chemical elements in group 15 of the periodic table. This group is also known as the nitrogen group or nitrogen family. Group 15 consists of the elements nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), bismuth (Bi), and moscovium (Mc). This is also the only group in the periodic table in which only one element ends in the common suffix -ium.

Since 1988, it has been called Group 15 by the IUPAC. Before that, in America it was called Group VA, owing to a text by H. C. Deming and the Sargent-Welch Scientific Company, while in Europe it was called Group VB, which the IUPAC had recommended in 1970.[2] (Pronounced "group five A" and "group five B"; "V" is the Roman numeral 5). In semiconductor physics, it is still usually called Group V.[3] The "five" ("V") in the historical names comes from the "pentavalency" of nitrogen, reflected by the stoichiometry of compounds such as N2O5. They have also been called the pentels.

  1. ^ International Union of Pure and Applied Chemistry (2005). Nomenclature of Inorganic Chemistry (IUPAC Recommendations 2005). Cambridge (UK): RSC–IUPAC. ISBN 0-85404-438-8. p. 51. Electronic version.
  2. ^ Fluck, E (1988). "New notations in the periodic table" (PDF). Pure and Applied Chemistry. 60 (3): 431–6. doi:10.1351/pac198860030431. S2CID 96704008.
  3. ^ Adachi, S., ed. (2005). Properties of Group-IV, III-V and II-VI Semiconductors. Wiley Series in Materials for Electronic & Optoelectronic Applications. Vol. 15. Hoboken, New Jersey: John Wiley & Sons. Bibcode:2005pgii.book.....A. ISBN 978-0470090329.

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