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What is the noble metal?

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Noble metals are a group of metals known for their exceptional properties such as high electrical and thermal conductivity, resistance to oxidation, and high work function. They include metals like Ru, Os, Rh, Ir, Pd, Pt, Ag, and Au . The term "noble metal" refers to metals that are resistant to corrosion and oxidation in various environments. These metals are highly valued for their chemical inertness and are widely used in industries such as chemical, electronics, and medical . The nobleness of a metal is determined by its ability to fulfill the electron demands of electronegative elements like oxygen. Gold is considered the most noble metal due to its high electronegativity, which results in weaker polar covalent bonding with oxygen . Noble metals are also used in various applications such as catalysis, energy storage, and as coatings on medical implants to improve their biological characteristics .

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Journal Article•DOI Noble Metal Nanomaterials with Nontraditional Crystal Structures Chaitali Sow, Suchithra P, Gangaiah Mettela, Giridhar U. Kulkarni - Show less +3 more 01 Jul 2020-Annual Review of Materials Research 22 Citations	The paper is about noble metal nanomaterials with nontraditional crystal structures. It does not explicitly define what noble metals are.
Open access•Journal Article•DOI Chemical causes of metal nobleness Kasper Planeta Kepp 04 Mar 2020-ChemPhysChem 10 Citations	The noble metal is gold, according to the provided paper.
Open access•Journal Article•DOI Noble Metals for Modern Implant Materials: MOCVD of Film Structures and Cytotoxical, Antibacterial, and Histological Studies. S. I. Dorovskikh, E. S. Vikulova, Elena V. Chepeleva, Maria Vasilieva, Dmitriy Nasimov, Eugene A. Maksimovskii, Alphiya R. Tsygankova, Tamara V. Basova, D. S. Sergeevichev, Natalya B. Morozova - Show less +9 more 21 Jul 2021-Biomedicines 5 Citations	The paper does not explicitly define what noble metals are.
Journal Article•DOI Electrochemical Recovery and Concentration of Noble Metals Stephen Cotty, Xiao-Ting Su - Show less +1 more 09 Oct 2022-Meeting abstracts	The paper does not explicitly define what noble metals are.

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