silver (Ag), tshuaj lom neeg, cov hlau nplaum dawb muaj nuj nqis rau nws cov hniav zoo nkauj thiab hluav taws xob conductivity. Nyiaj yog nyob hauv Pawg 11 (Ib) thiab Lub Sijhawm 5 ntawm lub sijhawm ntu, nruab nrab ntawm tooj liab (Lub Sijhawm 4) thiab kub (Lub Sijhawm 6), thiab nws lub cev thiab tshuaj lom neeg yog nruab nrab ntawm cov ob hlau.
Puas yog Platinum ib qho khoom?
Platinum (Pt), tshuaj lom neeg, paub zoo tshaj plaws thiab siv dav tshaj plaws ntawm rau lub platinum hlau ntawm Pawg 8–10, Lub Sijhawm 5 thiab 6, ntawm lub sijhawm teem sijhawm. Ib qho hnyav heev, muaj nuj nqis, nyiaj-dawb hlau, platinum yog mos thiab ductile thiab muaj lub siab melting point thiab zoo tiv thaiv corrosion thiab tshuaj tua kab mob.
Vim li cas nyiaj yog lub ntsiab?
Silver yog cov khoom siv tshuaj nrog lub cim Ag (los ntawm Latin argentum, muab los ntawm Proto-Indo-European h₂erǵ: " ci iab" lossis "dawb") thiab tus lej atomic 47. Ib qho muag muag, dawb, ci ntsa iab. hlau, nws nthuav tawm cov hluav taws xob siab tshaj plaws, thermal conductivity, thiab kev cuam tshuam ntawm ib qho hlau.
Puas yog tooj dag?
Brass yog ib qho alloy ntawm tooj liab thiab zinc hauv qhov sib txawv. Yog li nws tuaj yeem txiav txim siab los ntawm kev txhais tias tooj dag yog tsis yog qhov sib xyaw lossis ib qho khoomtab sis sib xyaw. Brass yog homogenous sib xyaw ntawm cov hlau tooj liab thiab zinc. Ob leeg ntawm cov hlau yog khi rau lub cev.
Puas yog nyiaj yog hlau?
Silver is akuj mos, ci hlau. Nws tarnishes maj mam nyob rau hauv huab cua raws li cov sulfur tebchaw react nrog rau saum npoo tsim dub nyiaj sulfide. Sterling nyiaj muaj 92.5% nyiaj. Cov seem yog tooj liab lossis lwm yam hlau.
