1. Cov hlau ntshiab tshaj plaws
Germanium: Germaniumpurified los ntawm lub regional melting technology, nrog ib tug purity ntawm "13 cuaj" (99.99999999999%)
2. Cov hlau feem ntau
Aluminium: Nws cov nyiaj ntau txog li 8% ntawm lub ntiaj teb lub pob zeb, thiab cov khoom siv txhuas muaj nyob txhua qhov chaw hauv ntiaj teb. Ordinary av kuj muaj ntau heevaluminium oxide
3. Qhov tsawg kawg nkaus ntawm cov hlau
Polonium: Tag nrho cov nyiaj nyob rau hauv lub ntiaj teb crust yog tsawg heev.
4. Lub lightest hlau
Lithium: sib npaug rau ib nrab ntawm qhov hnyav ntawm dej, nws tuaj yeem ntab tsis yog ntawm cov dej, tab sis kuj nyob rau hauv kerosene.
5. Qhov nyuaj tshaj plaws rau yaj hlau
TungstenMelting point yog 3410 ℃, boiling point yog 5700 ℃. Thaum lub teeb hluav taws xob qhib, qhov kub ntawm cov filament nce mus txog 3000 ℃, thiab tsuas yog tungsten tuaj yeem tiv taus qhov kub thiab txias. Tuam Tshoj yog lub ntiaj teb loj tshaj plaws tungsten cia lub teb chaws, feem ntau muaj xws li scheelite thiab scheelite.
6. Cov hlau nrog qhov qis tshaj plaws melting
Mercury: Nws qhov chaw khov yog -38.7 ℃.
7. Cov hlau uas muaj txiaj ntsig zoo tshaj plaws
Hlau: Hlau yog cov hlau uas muaj ntau tshaj plaws txhua xyoo ntau lawm, nrog rau ntiaj teb crude steel ntau lawm ncav cuag 1.6912 billion tons nyob rau hauv 2017. Meanwhile, hlau kuj yog lub thib ob feem ntau metallic keeb nyob rau hauv lub ntiaj teb crust.
8. Cov hlau uas tuaj yeem nqus tau cov pa roj ntau tshaj
Palladium: Nyob rau hauv chav tsev kub, ib ntim ntawmpalladiumhlau tuaj yeem nqus tau 900-2800 ntim ntawm hydrogen roj.
9. Qhov zoo tshaj plaws exhibiting hlau
Kub: 1 gram ntawm kub tuaj yeem rub mus rau hauv 4000 meter ntev filament; Yog tias hammered rau hauv cov ntawv nyiaj kub, lub thickness tuaj yeem ncav cuag 5 × 10-4 millimeters.
10. Cov hlau nrog qhov zoo tshaj plaws ductility
Platinum: Lub thinnest platinum hlau muaj ib txoj kab uas hla ntawm tsuas yog 1/5000mm.
11. Cov hlau nrog qhov zoo tshaj plaws conductivity
Nyiaj: Nws conductivity yog 59 npaug ntawm mercury.
12. Cov hlau ntau tshaj plaws hauv tib neeg lub cev
Calcium: Calcium yog cov hlau ntau tshaj plaws hauv tib neeg lub cev, suav txog kwv yees li 1.4% ntawm lub cev hnyav.
13. Sab saum toj ranked hloov hlau
Scandium: Nrog tus lej atomic tsuas yog 21,scandiumyog lub saum toj kawg nkaus ranked hloov hlau
14. Cov hlau kim tshaj plaws
Californium (k ā i): Xyoo 1975, lub ntiaj teb muab 1 gram ntawm californium nkaus xwb, nrog tus nqi ntawm ib ncig ntawm 1 billion US dollars ib gram.
15. Cov khoom siv superconducting yooj yim tshaj plaws
Niobium: Thaum txias mus rau qhov kub siab tshaj ntawm 263.9 ℃, nws yuav deteriorate rau hauv ib lub superconductor uas yuav luag tsis muaj zog.
16. Cov hlau hnyav tshaj plaws
Osmium: Txhua qhov cubic centimeter ntawm osmium hnyav 22.59 grams, thiab nws qhov ntom yog li ob npaug ntawm cov hlau lead thiab peb npaug ntawm cov hlau.
17. Cov hlau uas qis tshaj plaws hardness
Sodium: Nws Mohs hardness yog 0.4, thiab nws tuaj yeem txiav nrog rab riam me me ntawm chav tsev kub.
18. Cov hlau uas muaj zog tshaj plaws
Chromium: Chromium (Cr), tseem hu ua "cov pob txha tawv", yog cov nyiaj dawb hlau uas tsis tshua muaj zog thiab nkig. Mohs hardness yog 9, thib ob tsuas yog pob zeb diamond.
19. Cov hlau siv thaum ntxov
Tooj: Raws li kev tshawb fawb, cov khoom siv tooj liab ntxov tshaj plaws hauv Suav teb muaj keeb kwm ntau dua 4000 xyoo.
20. Cov hlau nrog cov kua ntau tshaj plaws
Gallium: Nws melting point yog 29.78 ℃ thiab boiling point yog 2205 ℃.
21. Cov hlau uas yog feem ntau ua rau cov khoom siv tam sim no nyob rau hauv illumination
Cesium: Nws lub ntsiab siv yog nyob rau hauv zus tau tej cov phototubes.
22. Cov khoom tseem ceeb tshaj plaws hauv alkaline ntiaj teb hlau
Barium: Barium muaj chemical reactivity thiab yog cov nquag nquag ntawm alkaline ntiaj teb hlau. Nws tsis raug cais raws li cov khoom siv hlau kom txog rau thaum 1808.
23. Cov hlau uas rhiab heev rau qhov txias
Tin: Thaum kub qis dua -13.2 ℃, tin pib tawg; Thaum qhov kub thiab txias poob qis dua -30 txog -40 ℃, nws tam sim ntawd hloov mus ua hmoov, ib qho tshwm sim feem ntau hu ua "tin epidemic"
24. Cov hlau uas muaj tshuaj lom tshaj plaws rau tib neeg
Plutonium: Nws cov carcinogenicity yog 486 lab lub sij hawm ntawm arsenic, thiab nws kuj yog cov muaj zog carcinogen. 1 × 10-6 grams ntawm plutonium tuaj yeem ua rau mob qog noj ntshav rau tib neeg.
25. Cov khoom siv hluav taws xob ntau tshaj plaws hauv dej hiav txwv
Uranium: Uranium yog cov khoom siv hluav taws xob loj tshaj plaws khaws cia hauv dej hiav txwv, kwv yees li 4 billion tons, uas yog 1544 npaug ntawm cov uranium khaws cia hauv av.
26. Lub caij nrog cov ntsiab lus siab tshaj plaws hauv dej hiav txwv
Potassium: Potassium muaj nyob rau hauv daim ntawv ntawm cov poov tshuaj ions hauv dej hiav txwv, nrog rau cov ntsiab lus ntawm 0.38g / kg, ua rau nws muaj ntau tshaj plaws hauv dej hiav txwv.
27. Cov hlau uas muaj atomic ntau tshaj plaws ntawm cov khoom ruaj khov
Lead: Lead muaj tus lej atomic siab tshaj plaws ntawm txhua yam tshuaj lom neeg ruaj khov. Muaj plaub lub isotopes ruaj khov nyob rau hauv qhov: lead 204, 206, 207, thiab 208.
28. Cov tshuaj lom neeg feem ntau yog hlau
Nickel: Nickel yog cov hlau tsis haum tshaj plaws, thiab kwv yees li 20% ntawm cov neeg ua xua rau nickel ions.
29. Cov hlau tseem ceeb tshaj plaws hauv aerospace
Titanium: titanium yog grey hloov hlau uas muaj lub teeb yuag, siab zog, thiab zoo corrosion kuj, thiab hu ua "qhov chaw hlau".
30. Cov kua qaub-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. Hlau nrog qhov tsawg tshaj plaws atomic radius
Beryllium: Nws lub vojvoog atomic yog 89 teev tsaus ntuj.
32. Cov hlau uas muaj corrosion-resistant tshaj plaws
Iridium: Iridium muaj tshuaj lom neeg ruaj khov rau cov kua qaub thiab yog insoluble hauv cov kua qaub. Tsuas yog daim txhuam cev zoo li iridium maj mam yaj hauv kub aqua regia. Yog hais tias iridium nyob rau hauv ib tug ntom, txawm boiling aqua regia tsis tuaj yeem corrode nws.
33. Cov hlau uas muaj xim tshwj xeeb tshaj plaws
Tooj: Pure metallic tooj liab yog ntshav liab hauv cov xim
34. Cov hlau uas muaj cov ntsiab lus isotopic siab tshaj
Tin: Muaj 10 cov isotopes ruaj khov
35. Qhov hnyav tshaj alkali hlau
Francium: Muab tau los ntawm kev lwj ntawm actinium, nws yog cov hlau hluav taws xob thiab cov hlau alkali hnyav tshaj plaws nrog cov txheeb ze atomic loj ntawm 223.
36. Cov Hlau Kawg Pom los ntawm Tib Neeg
Rhenium: Supermetallic rhenium yog ib yam khoom uas tsis tshua muaj, thiab nws tsis tsim ib qho chaw ruaj khov, feem ntau yog coexisting nrog lwm cov hlau. Qhov no ua rau nws lub ntsiab lus kawg pom los ntawm tib neeg hauv qhov xwm txheej.
37. Cov hlau tshwj xeeb tshaj plaws ntawm chav sov
Mercury: Nyob rau hauv chav tsev kub, hlau yog nyob rau hauv ib tug ruaj khov lub xeev, thiab tsuas yog mercury yog qhov tshwj xeeb tshaj plaws. Nws yog cov kua hlau nkaus xwb ntawm chav tsev kub.
Post lub sij hawm: Sep-11-2024