Magasi anokosha anowanikwa sei?
Context:Magasi anokosha (nhoroondo zvakare magasi inert; dzimwe nguva kunzi aerogens) vanoumba kirasi makemikari zvinhu pamwe zvakafanana ehupfumi; pasi mureza ezvinhu, vose risinganuki, colorless, monatomic magasi vane yakaderera chaizvo makemikari reactivity. Magasi matanhatu anokosha anowanikwa mumasikirwo ndihelium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), uye radon ine mwaranzi (Rn). Oganesson (Og) chinhu chinogadzirwa nenzira yokugadzira zvinhu chinobudisa mwaranzi zvikuru. Kunyange zvazvo IUPAC yakashandisa shoko rokuti "gasi rinokosha" richishandurirana ne"boka 18" uye nokudaro yakabatanidza oganesson, inogona kunge isiri yakakosha zvikuru mumakemikari uye inofungidzirwa kuti inoputsa tsika uye inogadziriswa nekuda kwezvinokonzerwa nehutano. Nemhaka yehafu yenguva pfupi zvikuru ye0.7 ms yeiyo isotope yayo bedzi inozivikanwa, makemikoro ayo haasati aongororwa. Nokuda kwenhambo nhanhatu dzokutanga dzeperiodic table, magasi anokosha inhengo chaidzo dzeboka 18. Magasi anokosha anowanzova asina simba zvikuru kunze kwokunge ari mumamiriro ezvinhu akaoma zvikuru. Kusashanda kwemagasi anokosha kunoaita kuti ave akakodzera zvikuru mumashandisirwo uko kuita zvinhu kusingadiwi. Somuenzaniso, argon inoshandiswa mumarambi emwenje kudzivirira tungsten filament inopisa kubva pakuita oxidizing; uyewo, helium inoshandiswa mumhepo yokufema nevanochera mumvura yakadzika kudzivirira okisijeni, nitrogen uye carbon dioxide chepfu. Zvinhu zvamagasi akanaka zvinogona kutsanangurwa zvakanaka nedzidziso dzamazuva ano dzokuumbwa kweatomu: Ganda ravo rokunze remagetsi rinorangarirwa kuva "rakazara", richivapa muitiro muduku wokugoverana mumhinduro dzemakemikoro, uye kwave kuchikwanisika kugadzirira bedzi mazana mashomanene emakemikoro egasi akanaka. Nzvimbo dzinonyunguduka uye dzinobvira dzegasi rinokosha rakapiwa dziri pedyo pamwe chete, dzinosiyana neasingasviki 10 °C (18 °F); ndiko kuti, idzo mvura pamusoro penzvimbo duku bedzi yetembiricha. Neon, argon, krypton, uye xenon zvinowanikwa mumhepo iri muchikamu chekuparadzanisa mhepo pachishandiswa nzira dzekuita kuti gasi rive mvura uye kupatsanura. Helium inowanwa muminda yegasi yechisikigo ine mwero wakakwirira wegesi yegasi, uchishandisa nzira dzokuparadzanisa gasi dzecryogenic, uye radon inowanzoparadzaniswa nekuparara kwemwaranzi ye radium yakanyungudutswa, thorium, kana uranium. Magasi anokosha anoshandiswa mumaindasitiri akawanda akadai sokuvheneka, kusimbisa, uye kuongorora nzvimbo. Helium-oxygen kufema gasi inowanzoshandiswa nevanonyura mumvura yakadzika pakadzika kwemvura yegungwa kupfuura 55 m (180 ft). Pashure pokunge ngozi dzinokonzerwa nokutsva kwehydrogen dzava pachena mutsaona yeHindenburg, yakatsiviwa nehelium mumabhiringi nemabhaluni.
Neon, argon, krypton, uye xenon zvinowanikwa mumhepo iri muchikamu chekuparadzanisa mhepo pachishandiswa nzira dzekuita kuti gasi rive mvura uye kupatsanura. Helium inowanwa muminda yegasi yechisikigo ine mwero mukuru wegesi yegasi, uchishandisa nzira dzokuparadzanisa gasi dzecryogenic, uye radon inowanzoparadzaniswa nekuparara kwemwaranzi ye radium yakanyungudutswa, thorium, kana uranium.