1. Cov hlau purest
Kev ua si hauv nkoj: Kev ua si hauv nkojntxuav los ntawm cheeb tsam melting thev naus laus zis, nrog kev coj dawb huv ntawm "13 tus niam ntiav" (99.9999999999%)
2. Cov hlau feem ntau
Aluminium: nws cov nyiaj nplua nuj rau kwv yees li 8% ntawm lub ntiaj teb crust, thiab txhuas teb muaj nyob hauv txhua qhov chaw hauv ntiaj teb. Cov av zoo tib yam kuj muaj ntauTxhuas Oxide
3. Qhov tsawg kawg nkaus ntawm cov hlau
Polonium: tag nrho cov nyiaj hauv lub ntiaj teb crust yog qhov tseem ceeb heev.
4. Lub teeb raj ntsuas
Lithium: Sib npaug rau ib nrab ntawm qhov hnyav ntawm dej, nws tuaj yeem ntab tsis tsuas yog nyob rau saum npoo dej, tab sis kuj nyob rau hauv kerosene.
5. Qhov nyuaj tshaj plaws rau melt hlau
Lub tungsten: Melting point yog 3410 ℃, boiling point yog 5700 ℃. Thaum lub teeb hluav taws xob nyob rau, qhov ntsuas kub ntawm Filament ncav ntau dua 3000 ℃, thiab tsuas yog tungsten tuaj yeem tiv taus ntau qhov kub. Tuam Tshoj yog lub ntiaj teb loj tshaj plaws tungsten cia lub teb chaws, feem ntau yog scheelite thiab schaeelite.
6. Cov hlau nrog qis tshaj plaws melting point
Mercury: nws qhov taw tes khov yog -38.7 ℃.
7. Cov hlau nrog cov khoom siab tshaj plaws
Hlau: Hlau yog cov hlau nrog cov txheej txheem siab xyoo dhau los, nrog cov hlau cuj
8. Cov hlau uas tuaj yeem nqus roj ntau dua
Palladium: Ntawm chav tsev kub, ib qho ntim ntawmpalladiumHlau tuaj yeem nqus 900-2800 ntau ntawm hydrogen gas.
9. Qhov zoo tshaj plaws kev ua haujlwm hlau
Kub: 1 gram ntawm kub tuaj yeem rub mus rau hauv 4000 meter ntev ntsiab lus; Yog tias hammered rau hauv cov ntawv ci kub, cov tuab yuav ncav cuag 5 × 10 millimeters.
10. Cov hlau nrog qhov zoo tshaj plaws ductility
Platinum: Lub platinest platinum xaim muaj ib txoj kab uas hla ntawm tsuas yog 1 / 5000mm.
11. Cov hlau nrog qhov zoo tshaj plaws
Nyiaj: Nws kev coj ua yog 59 zaug uas muaj mercury.
12. Qhov ntau tshaj li cov hlau ntoo hauv tib neeg lub cev
Cov tshuaj calcium: calcium yog cov hlau muaj ntau tshaj plaws hauv tib neeg lub cev, suav nyiaj kwv yees li ntawm 1.4% ntawm lub cev loj.
13. Cov kev hloov pauv sab saum toj
Scandium: Nrog ib tug atomic naj npawb ntawm tsuas yog 21,scandiumyog tus hloov pauv sab saum toj
14. Tus nqi kim tshaj plaws
Cov hauv California (K Ā i): Xyoo 1975, lub ntiaj teb tau muab tsuas yog 1 gram ntawm ib ncig 1 billion US las US Dollars ib gram.
15. Qhov yooj yim tshaj plaws tsim nyog superconducting lub caij
Niobium: Thaum txias rau ib qho ultra-tsawg kub ntawm 263.9 ℃, nws yuav ua rau muaj kev cuam tshuam rau lub superconductor nrog yuav luag tsis muaj kev tawm tsam.
16. Cov hlau hnyav tshaj plaws
: Txhua cubic centimeter ntawm osmium hnyav 22.59 grams, thiab nws qhov ntom yog li ob zaug ntawm cov txhuas ob zaug ntawm cov hlau.
17. Cov hlau nrog lub hardness qis tshaj
Sodium: nws mohs hardness yog 0.4, thiab nws tuaj yeem txiav nrog rab riam me me ntawm chav tsev kub.
18. Cov hlau nrog lub siab tshaj plaws
Yeebsab: Chromium (CR), Kuj tseem hu ua "tus pob txha tawv", yog ib qho khoom tawv dawb uas tsis tshua muaj zog thiab tawv. Lub mohs hardness yog 9, thib ob tsuas yog pob zeb diamond.
19. Cov neeg ua ntej siv
Tooj liab: Raws li kev tshawb fawb, qhov ntxov tooj liab Bronze nyob hauv Suav teb muaj keeb kwm tshaj 4000 xyoo.
20. Cov hlau nrog cov kua ntau ntau
Tus phab ntsa: Nws melting point yog 29.78 ℃ thiab rhaub point yog 2205 ℃.
21. Cov hlau uas yog cov nquag tshaj plaws kom tsim kom tsim kho qhov teeb meem tam sim no
CESIUM: Nws lub ntsiab siv yog nyob rau hauv kev tsim khoom ntawm ntau phototubes.
22. Lub caij nyoog feem ntau hauv lub ntiaj teb alkaline
Qia: Barium muaj qhov ua kom muaj kuab lom thiab yog qhov nquag tshaj plaws ntawm cov av alkaline av. Nws tsis tau cais raws li yog xim hlau kom txog thaum 1808.
23. Cov hlau uas yog qhov rhiab heev
Lub thoob: Thaum qhov ntsuas kub nyob hauv qab -13.2 ℃, tin pib tawg; Thaum qhov ntsuas kub poob qis dua -30 txog -40 ℃, tam sim ntawd tig mus ua hmoov, ib qho tshwm sim uas yog hu ua "Tin kisememic"
24. Cov hlau nplaum tshaj plaws rau tib neeg
Plutonium: nws lub carcinogenicity yog 486 lab lub sij hawm uas ntawm arsenic, thiab nws kuj yog cov carcinogen ntau tshaj plaws. 1 × 10-7 grams ntawm Plutonium tuaj yeem ua rau mob qog nqaij hlav rau tib neeg.
25. Qhov ntau tshaj plaws xov tooj cua xov tooj cua hauv hiav txwv
Uranium: uranium yog qhov loj tshaj plaws cov khoom siv hluav taws xob khaws cia hauv dej hiav txwv, kwv yees yuav 4 billion tons, uas yog 1544 npaug tus nqi ntawm uranium cia ntawm av.
26. Lub ntsiab lus nrog cov ntsiab lus siab tshaj plaws hauv dej hiav txwv
Poov tshuaj: poov tshuaj tshwm sim nyob rau hauv daim ntawv ntawm potassium ions hauv hiav txwv, nrog cov ntsiab lus ntawm 0.3 kg, ua nws ntau tshaj nyob hauv seawater.
27. Cov hlau nrog lub siab tshaj plaws atomic naj npawb ntawm cov khoom ruaj khov
Lead: Lead muaj cov lej siab tshaj plaws ntawm txhua cov tshuaj ruaj khov. Muaj plaub lub qhov ruaj khov isotopes hauv xwm: txhuas 204, 206, 207, thiab 208.
28. Feem ntau ntawm tib neeg muaj feem xyuam
Nickel: Nickel yog cov hlau uas muaj feem ntau ntawm cov neeg muaj kev fab ntau, thiab 20% ntawm cov neeg yog ua xua rau nickel ions.
29. Qhov tseem ceeb tshaj plaws hlau nyob rau hauv aerospace
Titanium: Titanium yog xim grey tus cwj pwm los ntawm lub teeb nyhav los ntawm lub teeb nyhav, muaj lub zog siab, thiab yog lub npe hu ua "chaw hlau".
30. Tus acid resistant hlau
Tantalum: Nws tsis hnov mob nrog hydrochloric acid, concentrated nitric acid, thiab aqua regia nyob rau hauv ob qho tib si txias thiab kub. Lub thickness corroded nyob rau hauv concentrated sulfuric acid ntawm 175 ℃ rau ib xyoos yog 0.0004 millimeters.
31. Cov hlau nrog cov me me atomic vojvoog
Beryllium: Nws atomic vojvoog yog 89 teev tsaus ntuj.
32. Qhov feem ntau corrosion-resistant hlau
Iridium: Iridium muaj cov tshuaj ruaj khov heev rau cov kua qaub thiab yog insoluble hauv cov kua qaub. Tsuas yog daim txhuam cev zoo li iridium maj mam yaj nyob rau hauv dej kub Aqua Regia. Yog iridium yog nyob rau hauv lub xeev tuab, txawm tias boiling aqua regia tsis corrode nws.
33. Cov hlau nrog cov xim tshwj xeeb tshaj plaws
Tooj liab: Ntshiab Metallic Tooj Liab yog ntshav liab nyob rau hauv xim
34. Cov hlau nrog cov ntsiab lus siab tshaj plaws isotopic
Tin: Muaj 10 lub nkuaj ruaj khov
35. Qhov hnyav tshaj plaws alkali hlau
Francium: muab tau los ntawm kev lwj ntawm cov actinium, nws yog cov hlau hluav taws xob thiab cov hlau hnyav tshaj plaws ntawm 223.
36. Tus kawg hlau nrhiav pom los ntawm tib neeg
Rhenium: SuperMetallic rhenium yog lub ntsiab tsawg tiag tiag, thiab nws tsis ua cov ntxhia ruaj khov, feem ntau ua rau lwm cov hlau. Qhov no ua rau nws lub caij kawg pom los ntawm tib neeg hauv qhov.
37. Qhov kev sib txawv tshaj plaws ntawm chav tsev kub
Mercury: nyob rau hauv chav tsev kub, cov hlau nyob hauv lub xeev ruaj khov, thiab tsuas yog Mercury yog qhov tshwj xeeb tshaj plaws. Nws yog tib qho kev ua kua ntawm chav tsev kub.
Lub Sijhawm Post: Sep-11-2024