Video: Leej twg yog Dmitri Mendeleev thiab dab tsi yog nws pab rau chemistry?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Dmitri Mendeleev yog ib tug Russian kws tshuaj uas nyob los ntawm 1834 txog 1907. Nws raug suav hais tias yog tus pab cuam tseem ceeb tshaj plaws rau txoj kev loj hlob ntawm lub sij hawm. Nws version ntawm lub sij hawm teem lub ntsiab lus rau hauv kab raws li lawv atomic mass thiab mus rau hauv kab raws li tshuaj thiab lub cev muaj zog.
Ib yam li ntawd, cov ntaub ntawv tshiab dab tsi Dmitri Mendeleev pab txhawb rau kev nkag siab ntawm lub atom?
Petersburg, Russia), Lavxias teb sab chemist uas tsim lub sij hawm faib cov ntsiab lus. Mendeleev pom tias, thaum tag nrho cov tshuaj paub txog cov ntsiab lus tau npaj nyob rau hauv kev txiav txim ntawm nce atomic hnyav , cov lus tshwm sim tau nthuav tawm cov qauv rov tshwm sim, lossis ncua sij hawm, ntawm cov khoom hauv pawg ntawm cov ntsiab lus.
Tsis tas li ntawd, Dmitri Mendeleev nto moo rau dab tsi? Mendeleev yog paub zoo tshaj plaws rau nws nrhiav tau ntawm txoj cai ncua sij hawm, uas nws tau qhia nyob rau hauv 1869, thiab rau nws formulation ntawm lub periodic rooj ntawm lub ntsiab. Nws tuag hauv St. Petersburg, Russia, thaum Lub Ob Hlis 2, 1907.
Ib yam li ntawd, tib neeg nug, Mendeleev qhov kev pab cuam rau kev tshawb fawb yog dab tsi?
Mendeleev ua loj tshaj pab txhawb rau science Nws yog qhov tseeb ntawm Lub Sijhawm Table of Elements, uas hais tias cov khoom ntawm cov ntsiab lus tseem ceeb rov ua dua ib ntus thaum lawv tau teeb tsa los ntawm lawv tus lej atomic. Nws tau ua qhov kev tshawb pom hauv 1869 thaum nws ua haujlwm ntawm cov ntawv tau txais txiaj ntsig ntawm chemistry hauv paus.
Dmitri Mendeleev nrhiav tau dab tsi?
Periodic Table Pyrocollodion Pycnometer
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