Video: Yuav ua li cas muaj pes tsawg tus tooj liab atoms koj yuav tsum tau kab ntawm ib sab los tsim ib kab 1'm ntev?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Los ntawm kev sib piv, ntiaj teb cov pej xeem tsuas yog kwv yees li 7? 109 neeg. Yog tias koj tuaj yeem ua kab 100,000,000 tooj liab atoms ib sab ntawm sab, lawv yuav tsim ib txoj kab tsuas yog 1 cm ntev!
Xav txog qhov no, muaj pes tsawg tus tooj liab atoms koj yuav tsum tau ua kab ntawm ib sab los ua kab 1'm ntev?
109 neeg. Yog tias koj tuaj yeem ua kab 100,000,000 tooj liab atoms ib sab ntawm sab, lawv yuav tsim ib txoj kab tsuas yog 1 cm ntev!
Ib tug kuj yuav nug, qhov twg yog ob qhov tom kawg pom? Cov tom qab ob feem yog pom nyob rau hauv lub nucleus ntawm lub atom. nws yog Rutherford uas nrhiav pom lub nucleus ntawm lub atom. Lub nucleus, uas muaj tus nqi zoo, occupies ib qho me me ntawm lub atom. Nyob rau hauv sib piv, cov tsis zoo them electrons nyob feem ntau ntawm lub ntim ntawm lub atom.
Kuj Paub, nyob rau hauv hom kev sib piv dab tsi ua atoms sib xyaw ua ke?
Atoms ntawm cov khoom sib txawv tuaj yeem ua ke nrog rau ib leeg nyob rau hauv ib tug tas, yooj yim, tag nrho cov naj npawb piv rau tsim compound atoms . Atoms ntawm tib lub ntsiab tuaj yeem ua ke hauv ntau tshaj ib piv rau daim ntawv ob lossis ntau dua tshuaj sib xyaw.
Puas muaj cov subatomic particles nyob rau hauv lub nucleus?
Hauv nruab nrab ntawm txhua lub atom yog lub nucleus. Lub nucleus muaj ob hom subatomic hais, protons thiab neutrons. Cov protons muaj cov nqi hluav taws xob zoo thiab cov neutrons tsis muaj hluav taws xob. Ib hom thib peb ntawm subatomic particle, electrons , txav ib ncig ntawm lub nucleus.
Pom zoo:
Muaj pes tsawg atoms nyob rau hauv 1 mole ntawm tooj liab?
Lub tswv yim 2. Kev sib raug zoo ntawm molecular (formula) mass thiab molar mass Page 4 4 • Kom tau ib mole ntawm tooj liab atoms (6.02 x 1023 atoms), hnyav 63.55 g tooj liab. Molar mass (M) ntawm ib yam khoom yog qhov loj ntawm ib qho mole ntawm cov chaw (atoms, molecules, lossis formula units) ntawm cov khoom
Vim li cas nws thiaj li hais tias lub Orthocenter ntawm daim duab peb sab obtuse yuav tsum nyob rau sab nraud ntawm daim duab peb sab?
Nws hloov tawm tias tag nrho peb qhov siab ib txwm sib tshuam ntawm tib lub ntsiab lus - lub npe hu ua orthocenter ntawm daim duab peb sab. Lub orthocenter tsis yog ib txwm nyob hauv daim duab peb sab. Yog tias daim duab peb sab yog obtuse, nws yuav nyob sab nraud. Txhawm rau ua kom qhov no tshwm sim cov kab qhov siab yuav tsum tau txuas ntxiv kom lawv hla
Koj paub li cas muaj pes tsawg electrons nyob hauv tooj liab?
Lub npe tooj liab Atomic Mass 63.546 atomic mass units Tus naj npawb ntawm Protons 29 Tus lej ntawm Neutrons 35 Tus lej Electrons 29
Yuav ua li cas cov khoom siv caj ces hauv txhua lub xov tooj tshiab tsim los ntawm kev faib tawm ntawm tes sib piv nrog cov khoom siv caj ces hauv lub xov tooj qub?
Mitosis tshwm sim nyob rau hauv ob lub nuclei uas zoo tib yam rau thawj nucleus. Yog li, ob lub hlwb tshiab tsim tom qab kev faib tawm ntawm tes muaj tib yam khoom siv caj ces. Thaum lub sij hawm mitosis, chromosomes condense los ntawm chromatin. Thaum saib nrog lub microscope, chromosomes pom nyob rau hauv lub nucleus
Yuav ua li cas muaj pes tsawg tus noob sib xyaw ua tau hauv gamete ntau lawm rau Dihybrid cross Vim li cas thiaj muaj ntau?
Muaj peev xwm gametes rau txhua tus niam txiv AaBb Txij li thaum txhua tus niam txiv muaj plaub qhov sib txawv ntawm cov alleles hauv gametes, muaj kaum rau kev sib txuas ua ke rau tus ntoo khaub lig no