銀

Also known as element 47

原子序數為47的化學元素

OverviewAI-generated

Silver is a chemical element with the symbol Ag and atomic number 47. It is classified as a noble metal, a transition metal, and a precious metal within period 5. The element has a silver color and a density of 10.49. Its mass is 107.8682, and its electronegativity is 2.

Silver melts at 1761 and boils at 3632. It was discovered or invented around 5000 BCE. The standard molar entropy is 42.6, and the vapor pressure is 0. It is described by sources including the Bible Encyclopedia of Archimandrite Nicephorus, the Brockhaus and Efron Encyclopedic Dictionary, the Gujin Tushu Jicheng, and the Encyclopædia Britannica 11th edition.

Synthesized by Vinony from 34 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.

Key facts

Silver.engvar: en-GB

via Wikipedia infobox

Chemical data

Formula: Ag
Molecular weight: 107.868 g/mol
IUPAC name: silver
SMILES: [Ag]
InChIKey: BQCADISMDOOEFD-UHFFFAOYSA-N
Polar surface area: 0 Å²
H-bond donors: 0
H-bond acceptors: 0
Formal charge: 0

via PubChem

Research

154,286 papers

Silver nanoparticles as a new generation of antimicrobials.ReviewBiotechnology advances · 2009Rai M, Yadav A, Gade ADOI: 10.1016/j.biotechadv.2008.09.002
Silver Compounds for Caries Management.ReviewInternational dental journal · 2024Xu GY, Zhao IS, Lung CYK et al.DOI: 10.1016/j.identj.2023.10.013
Silver-Containing Biomaterials for Biomedical Hard Tissue Implants.ReviewAdvanced healthcare materials · 2023Shao H, Zhang T, Gong Y et al.DOI: 10.1002/adhm.202300932
Microbial silver resistance mechanisms: recent developments.ReviewWorld journal of microbiology & biotechnology · 2022Terzioğlu E, Arslan M, Balaban BG et al.DOI: 10.1007/s11274-022-03341-1
Silver in biology and medicine: opportunities for metallomics researchers.ReviewMetallomics : integrated biometal science · 2021Betts HD, Whitehead C, Harris HHDOI: 10.1093/mtomcs/mfaa001
Silver as an Antibiotic-Independent Antimicrobial: Review of Current Formulations and Clinical Relevance.ReviewSurgical infections · 2022Vishwanath N, Whitaker C, Allu S et al.DOI: 10.1089/sur.2022.229
Use of Silver Nanomaterials for Caries Prevention: A Concise Review.ReviewInternational journal of nanomedicine · 2020Yin IX, Zhao IS, Mei ML et al.DOI: 10.2147/IJN.S253833
The role of silver coating for arthroplasty components.ReviewThe bone & joint journal · 2021Diez-Escudero A, Hailer NPDOI: 10.1302/0301-620X.103B3.BJJ-2020-1370.R1

via PubMed

Wikidata facts

Subclass of: noble metal
Part of: group 11
Named after: white
Material used: chlorargyrite
Mass: 107.8682
Image: Silver crystal.jpg
Has use: food additive

Show 23 more facts

atomic number: 47
element symbol: Ag
Commons category: Silver
topic's main category: Category:Silver
NIOSH Pocket Guide ID: 0557
density: 10.49
immediately dangerous to life or health: 10
Commons gallery: Silver
melting point: 1761
boiling point: 961.78
vapor pressure: 0
time-weighted average exposure limit: 0.01
electronegativity: 2
chemical formula: Ag
canonical SMILES: [Ag]
color: silver
time of discovery or invention: 5000-00-00
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4
standard molar entropy: 42.6
electrical conductivity: 63000000
Unicode character: 銀
different from: Ag
ionic radius: 75

Sources (10)

via Wikidata · CC0

Article · 中文

銀（拼音：yín，注音：丨ㄣˊ；英語：Silver），俗稱白銀，是一種化學元素，其化學符號为Ag（源于拉丁語：argentum；其来源于原始印歐語h₂erǵ，意為「閃亮」或「白色」），原子序數为47，原子量為107.8682 u。銀是柔軟且帶有白色光澤的過渡金屬，在所有金屬中，擁有最高的導電率、導熱率和反射率。銀在自然界中的存在方式有高純度的元素形式（自然銀），如與金或其他金屬以合金形式存在，以及在礦石中存在，如輝銀礦和角銀礦。大部分銀是銅、金、鉛和鋅精煉的副產品。長期以來，銀一直被視為貴金屬。銀金屬被用於許多投資型硬幣中，有時與金一起使用。雖然它比金更豐富，但它作為天然金屬的豐富程度要低得多。銀的純度通常以每千分之一單位測量；94％純度的合金被描述為「0.940 fine」（英文表示）。作為古代常用七種金屬之一，銀在人類文化中已經使用相當久的歷史。除了貨幣和投資媒介（硬幣和金條），銀用於太陽能電池、水過濾、珠寶、裝飾品、高價值餐具和器具（因此稱為銀器）、電氣接觸和導體、專用鏡子、窗戶塗料、催化化學反應，作為著色玻璃和專用糖果中的著色劑。其化合物用於照相和X光膠片。硝酸銀和其他銀化合物的稀溶液用作消毒劑和殺微生物劑（微動力效應），添加到繃帶和傷口敷料、導管和其他醫療儀器中。

Abstract from DBpedia / Wikipedia · CC BY-SA