Video: Yuav ua li cas isotopes c12 thiab c14 zoo ib yam ntawm ib leeg?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Carbon-12 thiab carbon-14 yog ob isotopes ntawm tus carbon hlau. Cov qhov sib txawv ntawm carbon-12 thiab carbon-14 yog tus tus naj npawb ntawm neutrons hauv txhua ntawm lawv cov atoms. Qhov no yog li cas qhov no ua haujlwm. Cov tus lej muab tom qab tus atom lub npe qhia tus Tus naj npawb ntawm protons ntxiv rau neutrons hauv ib lub atom lossis ion.
Kuj paub, ua li cas cov isotopes ntawm carbon txawv ntawm ib leeg?
Atoms ntawm txawv isotopes ntawm ib lub caij muaj tib tus lej atomic txawm tias lawv qhov hnyav atomic sib txawv. Ib atom ntawm carbon muaj 6 protons. Cov Lwm cov isotopes muaj 5, 7 lossis 8 neutrons txawm hais tias tus naj npawb ntawm protons nyob rau hauv tag nrho lawv yog tib yam. Tag nrho isotopes ntawm carbon zoo ib yam li ntawd txhua atom muaj 6 protons.
Tom qab ntawd, lo lus nug yog, vim li cas carbon 14 thiab carbon 12 suav tias yog isotopes? Isotopes ntawm Cov pa roj carbon Ob leeg 12C thiab 13 C hu ua ruaj khov isotopes txij li thaum lawv tsis lwj mus rau hauv lwm yam ntaub ntawv los yog cov khoom nyob rau lub sij hawm. Qhov tsawg carbon - 14 ( 14C ) isotope muaj yim neutrons nyob rau hauv nws cov nucleus. Tsis zoo li 12C thiab 13 C , qhov no isotope tsis ruaj tsis khov, los yog radioactive. Nyob rau tib lub sijhawm, a 14C atom yuav lwj mus rau hauv cov khoom ruaj khov.
Tsis tas li ntawd, qhov txawv ntawm carbon 12 carbon 13 thiab carbon 14 yog dab tsi?
Kev piav qhia: Cov pa roj carbon 12 , 13 thiab 14 yog carbon isotopes, txhais tau tias lawv muaj cov neutrons ntxiv: Cov pa roj carbon 12 muaj raws nraim 6 protons thiab 6 neutrons (li no lub 12 ) Cov pa roj carbon 14 muaj 6 protons thiab 8 neutrons.
Qhov piv ntawm carbon 12 rau carbon 14 yog dab tsi?
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Pom zoo:
Yuav ua li cas xaiv tej yam ntuj tso khaws cia tej yam zoo?
Cov txheej txheem los ntawm kev ua neej nyob nrog cov cwj pwm zoo uas ua rau lawv hloov mus rau ib puag ncig kev nyuaj siab, piv txwv li, cov tsiaj nyeg, kev hloov pauv hauv huab cua, lossis kev sib tw rau zaub mov lossis phooj ywg, yuav nyiam ciaj sia thiab yug me nyuam ntau dua li lwm tus ntawm lawv hom, yog li xyuas kom cov perpetuation ntawm cov dej siab
Yuav ua li cas tshwm sim thaum ob qhov zoo tib yam nthwv dej uas tawm ntawm theem nrog ib leeg ua ke?
Ob lub nthwv dej nrog tib zaus thiab theem yuav ua ke los tsim ib lub suab ntawm ntau dua amplitude - qhov no yog hu ua kev cuam tshuam. Ob lub nthwv dej zoo sib xws 180 degrees tawm ntawm theem yuav tshem tawm tag nrho ib leeg tawm hauv cov txheej txheem hu ua theem tshem tawm lossis cuam tshuam kev puas tsuaj
Yuav ua li cas slate phyllite thiab schist txawv ntawm ib leeg?
Schist yog ib lub pob zeb metamorphic nrog zoo-tsim foliation. Nws feem ntau muaj qhov tseem ceeb ntawm mica uas tso cai rau lub pob zeb sib cais ua nyias nyias. Nws yog pob zeb ntawm qib nruab nrab metamorphic ntawm phyllite thiab gneiss. Slate yog lub pob zeb foliated metamorphic uas yog tsim los ntawm metamorphism ntawm shale
Vim li cas tsis zoo thiab tsis zoo yog qhov zoo?
Thaum koj muab qhov tsis zoo los ntawm qhov tsis zoo koj tau txais qhov zoo, vim tias ob lub cim tsis zoo raug muab tso tseg
Koj yuav ua li cas thiaj paub tias kev sib raug zoo yog qhov zoo lossis tsis zoo?
Qhov zoo correlation coefficient txhais tau hais tias raws li tus nqi ntawm ib qho kev sib txawv nce, tus nqi ntawm lwm qhov sib txawv nce; raws li ib tug txo qhov qis dua. Qhov tsis zoo correlation coefficient qhia tau hais tias raws li ib qho kev sib txawv nce, qhov txo qis, thiab vice-versa