Dab tsi ntawm daim ntawv teev sijhawm yog xov tooj cua?
Dab tsi ntawm daim ntawv teev sijhawm yog xov tooj cua?

Video: Dab tsi ntawm daim ntawv teev sijhawm yog xov tooj cua?

Video: Dab tsi ntawm daim ntawv teev sijhawm yog xov tooj cua?
Video: yog hmoov dab tsi tub huas xyooj 2024, Kaum ib hlis
Anonim

Muaj ob kab hauv qab daim ntawv qhia hnub : lanthanide thiab actinide series. Lub lanthanide series tuaj yeem pom nyob rau hauv lub ntiaj teb. Tsuas yog ib qho xwb keeb hauv series yog xov tooj cua.

Ib yam li ntawd, nyob qhov twg ntawm lub rooj noj mov yog cov khoom siv hluav taws xob?

Tag nrho cov naturally tshwm sim radioactive cov ntsiab lus yog concentrated ntawm atomic tooj 84 thiab 118 ntawm lub daim ntawv qhia hnub Txawm tias Tc thiab Pm yog ib qho kev zam.

Tsis tas li ntawd, hluav taws xob ntawm lub rooj zaum yog dab tsi? Hluav taws xob yog zog. Nws tuaj yeem los ntawm cov atoms tsis ruaj khov uas dhau los ntawm cov hluav taws xob tawg, lossis nws tuaj yeem tsim los ntawm cov tshuab. Hluav taws xob taug kev los ntawm nws qhov chaw nyob rau hauv daim ntawv ntawm lub zog tsis muaj zog los yog energized hais. Hom kev ionizing hluav taws xob . Lub Sijhawm Sijhawm.

Tsis tas li ntawd, cov ntsiab lus dab tsi ntawm lub rooj sib tham yog cov xov tooj cua hauv lawv daim ntawv tshaj plaws?

Cuaj lub ntsiab 84–92 yog hu ua "naturally oc-curring" radioactive element. Lawv yog polonium, astatin, radon , francium , radium, actinium, thorium, protactinium thiab uranium.

Thaum twg lub sij hawm ntawm lub sij hawm lub sij hawm yog tag nrho ntawm ib txwm tshwm sim cov ntsiab lus radioactive?

Ntau ntau cov ntsiab lus muaj ib txwm - tshwm sim radioactive isotopes, xws li carbon-14 thiab potassium-40. Txawm li cas los xij, dhau keeb #83, bismuth, tsis muaj isotopes ruaj khov- tag nrho isotopes ntawm tag nrho ntawm cov no cov ntsiab lus yog xov tooj cua.

Pom zoo: