Puas yog Rutherford nrhiav tau neutrons?
Puas yog Rutherford nrhiav tau neutrons?

Video: Puas yog Rutherford nrhiav tau neutrons?

Video: Puas yog Rutherford nrhiav tau neutrons?
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Anonim

Xyoo 1919 Rutherford muaj nrhiav pom proton, ib tug zoo nqi particle nyob rau hauv lub atom lub nucleus. Tab sis lawv thiab lwm cov kws tshawb fawb tau pom tias cov proton ua tsis zoo li tsuas yog ib feem ntawm lub nucleus. Nws hu ua a neutron , thiab xav tias nws yog ib tug khub proton thiab electron.

Ib yam li ntawd, tib neeg nug, ua li cas lub neutron nrhiav tau?

Discovery ntawm Neutron . Nws yog qhov zoo tshaj plaws uas neutron tsis yog nrhiav pom mus txog rau xyoo 1932 thaum James Chadwick siv cov ntaub ntawv tawg paj los xam cov huab hwm coj ntawm qhov nruab nrab no. Qhov kev ntsuam xyuas no ua raws li qhov kev sib tsoo ntawm lub taub hau elastic uas ib qho me me ntaus ib qho loj dua.

Ib yam li ntawd, thaum twg Chadwick nrhiav tau lub neutron? Xyoo 1932:

Yog li ntawd, leej twg ua haujlwm nrog Rutherford nrhiav cov neutron?

Qhov kev tshawb pom ntawm cov neutron thiab nws cov khoom yog qhov tseem ceeb rau qhov kev txhim kho tshwj xeeb hauv atomic physics hauv thawj ib nrab ntawm lub xyoo pua 20th. Thaum pib ntawm lub xyoo pua, Ernest Rutherford tau tsim cov qauv tsis zoo ntawm lub atom, raws li kev sim ntawm cov ntawv ci kub. Hans Geiger thiab Ernest Marsden.

James Chadwick tau sim dab tsi los tshawb pom cov neutron?

James Chadwick tau muab txoj haujlwm los taug qab cov pov thawj ntawm Rutherford txoj hlua khi "proton-electron khub" lossis neutron . Nyob rau hauv 1930 nws tau pom tias Beryllium, thaum bombarded los ntawm alpha hais, emissions lub zog heev ntawm hluav taws xob. Cov kwj no yog thawj zaug xav tias yog gamma hluav taws xob.

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