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.
