Cov txheej txheem:
- Dab tsi yog ob qho isotopes tshwm sim?
- Puas muaj 2 qhov tshwm sim ntawm cov isotopes ntawm tooj liab?
- Dab tsi yog cov isotopes tshwm sim ntau tshaj plaws?
- Muaj pes tsawg tus isotopes tshwm sim muaj?
Video: Puas muaj ob lub isotopes tshwm sim?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
2. Gallium muaj ob qhov tshwm sim ntawm isotopes: Ga-69 nrog huab hwm coj 68.9256 amu thiab natural abundance ntawm 60.11%, thiab Ga-71 nrog huab hwm coj 70.9247 amu thiab ib qho kev nplua nuj ntawm 39.89%. … Bromine muaj ob lub isotopes tshwm sim (Br-79 thiab Br-81) thiab ib qho atomic loj ntawm 79.904 amu.
Dab tsi yog ob qho isotopes tshwm sim?
Carbon muaj ob lub isotopes tshwm sim: carbon-12 (ntau=12.00 amu) thiab carbon-13 (nqus=13.00 amu). Cov tshuaj chlorine kuj muaj ob qhov tshwm sim ntawm cov isotopes: chlorine-35 (mass=34.97 amu) thiab chlorine-37 (mass=36.97 amu).
Puas muaj 2 qhov tshwm sim ntawm cov isotopes ntawm tooj liab?
tooj liab muaj ob lub isotopes tshwm sim, 63Cu (62.9396 amu) thiab 65Cu (64.9278 amu). Yog tias tooj liab muaj atomic loj ntawm 63.546 amu, qhov feem pua ntawm txhua tus isotope tooj liab yog dab tsi?
Dab tsi yog cov isotopes tshwm sim ntau tshaj plaws?
Qhov hnyav tshaj plaws isotope ruaj khov yog lead-208, tab sis qhov hnyav tshaj 'natural' isotope yog U-238. Ntau lub ntsiab lus muaj ob qho tib si ntuj thiab dag isotopes. Piv txwv li, hydrogen muaj peb lub ntuj isotopes thiab lwm plaub lub npe hu ua isotopes.
Muaj pes tsawg tus isotopes tshwm sim muaj?
Lub kwv yees li cuaj caum ib txwm tshwm simcov ntsiab lus tau kwv yees tias yuav tshwm sim li 339 qhov sib txawv isotopes, uas kwv yees li 250 qhov ruaj khov thiab 35 tsis ruaj khov (xov tooj cua) nrog lub neej ntev heev ntawm lab xyoo. Ntau tshaj 3,000 ntxiv cov isotopes radioactive tau tsim.
Pom zoo:
Puas yog kev tshwm sim lossis kev tshwm sim?
Reveling, kuj spelled reveling, txhais tau tias muaj lub sij hawm zoo, los yog zoo siab rau ib yam dab tsi. Yog tias koj tawm mus ua kev zoo siab rau koj kawm tiav thiab koj haus dej haus, tog thiab muaj lub sijhawm zoo, qhov no yog qhov piv txwv ntawm thaum koj rov qab los .
Puas yog nws tshwm sim lossis tshwm sim?
Raws li lub npe qhov txawv ntawm qhov tshwm sim thiab qhov tshwm sim. yog happenchance is a coincidental happen while happenstance is (countable) a chance or random event or random events . Puas yog ib lo lus? Ib qho xwm txheej tsis tau xav txog:
Puas muaj qhov sib txawv ntawm qhov tshwm sim thiab qhov tshwm sim?
Raws li lub npe qhov txawv ntawm qhov tshwm sim thiab qhov tshwm sim. yog happenchance is a coincidental happen while happenstance is (countable) a chance or random event or random events . Puas muaj lo lus tshwm sim? : a xwm txheej tshwj xeeb yog vim muaj caij nyoog Lawv tuaj ua ke los ntawm qhov tshwm sim .
Yuav ua li cas tshwm sim hauv kuv mob siab heev tshwm sim?
Thaum zaj yeeb yaj kiab tsis qhia meej raws li ib zaj dab neeg tseeb, nws yog tsim los ntawm cov xwm txheej hauv lub neej tiag tiag: yog, ntau tus neeg saib xyuas kev dag ntxias tau nyiag kev nplua nuj thiab kev ywj pheej ntawm suav tsis txheeb.
Lub sijhawm redox tshwm sim dab tsi tshwm sim?
Dab tsi tshwm sim hauv Oxidation-Reduction (Redox) Reaction? Electrons raug xa los ntawm ib qho reactant mus rau lwm qhov thiab oxidation xeev / oxidation naj npawb oxidation tooj Qhov nce hauv oxidation lub xeev ntawm atom, los ntawm cov tshuaj tiv thaiv, hu ua oxidation;
