kripton

Also known as Kr, element 36, 36Kr

Kr - Elemento chimico con numero atomico 36

OverviewAI-generated

Krypton is a chemical element with the symbol Kr and atomic number 36. It has a standard atomic weight of 83.798, while PubChem lists its weight as 83.80. The element was discovered in 1898. Its electron configuration is described as 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ or [Ar] 3d¹⁰ 4s² 4p⁶. The canonical SMILES representation is [Kr].

Physicochemical properties include an electronegativity of 3 and a standard molar entropy of 164. The molecule has a topological polar surface area of 0, with zero hydrogen bond donors and acceptors, and a charge of 0. The Unicode character for krypton is 氪. In academic literature, a PubMed query for krypton yields 3040 results. Additionally, the subject is referenced by 631 other encyclopedia articles.

Synthesized by Vinony from 24 facts across 4 sources: Wikidata, PubChem, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Chemical data

Formula: Kr
Molecular weight: 83.8 g/mol
IUPAC name: krypton
SMILES: [Kr]
InChIKey: DNNSSWSSYDEUBZ-UHFFFAOYSA-N
Polar surface area: 0 Å²
H-bond donors: 0
H-bond acceptors: 0
Formal charge: 0

via PubChem

Research

3,040 papers

Krypton-81m.Progress in nuclear medicine · 1978Goris M, Daspit S
Krypton-derivatization highlights O(2)-channeling in a four-electron reducing oxidase.Chemical communications (Cambridge, England) · 2020Engilberge S, Wagner T, Carpentier P et al.DOI: 10.1039/d0cc04557h
HEART.ReviewAnnual review of physiology · 1964BERNE RM, LEVY MNDOI: 10.1146/annurev.ph.26.030164.001101
A krypton-83m generator.The International journal of applied radiation and isotopes · 1971Moghissi AA, Hupf HBDOI: 10.1016/0020-708x(71)90130-x
Validation of krypton as a new tracer gas for the standardization tests of collective and individual protection systems.Annals of work exposures and health · 2024Cabaset E, Marchal M, Santandrea A et al.DOI: 10.1093/annweh/wxad071
Deep-mantle krypton reveals Earth's early accretion of carbonaceous matter.Nature · 2021Péron S, Mukhopadhyay S, Kurz MD et al.DOI: 10.1038/s41586-021-04092-z
[The pharmacology of the rare gases (helium, neon, argon, krypton, xenon)].ReviewActualites pharmacologiques · 1974Featherstone RM, Settle W
The krypton thunderbolt.Hospital practice · 1976Commoner BDOI: 10.1080/21548331.1976.11707001

via PubMed

Article · Italiano

Il kripton o kripto o cripto (dal greco κρυπτός, kryptòs, «nascosto») è l'elemento chimico di numero atomico 36 e il suo simbolo è Kr. Appartiene al gruppo dei gas nobili, è incolore ed è presente in tracce nell'atmosfera, dalla quale viene isolato per distillazione frazionata dell'aria liquida. Viene usato con altri gas inerti nelle lampade a fluorescenza. Dal punto di vista pratico, il kripton è chimicamente inerte, tuttavia sono noti alcuni suoi composti con il fluoro. Può inoltre formare clatrati con l'acqua, quando alcuni suoi atomi sono intrappolati nel reticolo cristallino formato dalle molecole di quest'ultima.

Abstract from DBpedia / Wikipedia · CC BY-SA