Video: Tus naj npawb ntawm neutrons hauv cesium yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Daim duab ntawm nuclear muaj pes tsawg leeg thiab electron configuration ntawm ib tug atom ntawm caesium-133 (atomic tooj: 55 ), qhov feem ntau isotope ntawm lub caij no. Lub nucleus muaj 55 protons (liab) thiab 78 neutron (xiav).
Hais txog qhov no, tus lej ntawm CS yog dab tsi?
132.90545 ua
Tsis tas li ntawd, cesium muaj nyob rau hauv dab tsi? Xyoo 1860
Ib yam li ntawd, lub zog ntawm cesium yog dab tsi?
Data Zone
| Kev faib tawm: | Cesium yog alkali hlau |
|---|---|
| Protons: | 55 |
| Neutrons nyob rau hauv feem ntau muaj isotope: | 78 |
| Electron plhaub: | 2, 8, 18, 18, 8, 1 |
| Electron configuration: | [Xe] 6s1 |
Cesium ntau npaum li cas ib gram?
Cov nqe rau 100 grams ntawm tib yam khoom los ntawm lub tuam txhab no yog $535.00 lossis $5.35 rau gram . Ntawm lwm lub tuam txhab, lub nqe rau 1- grams ampoule ntawm 99.95% ntshiab cesium yog $38.64. Yog li cia peb hais hauv 1996, 9995 Cesium yog $38.64 rau gram . Xyoo 1996 Kub yog $369 rau ounce , uas hloov mus rau $ 11.90 rau gram.
Pom zoo:
Muaj pes tsawg neutrons nyob rau hauv chromium atom nrog ib tug loj tus naj npawb ntawm 54?
Chromium 54: Tus lej atomic Z = 24, muaj 24 protons thiab 24 electrons. Tus lej A = 54. Tus lej ntawm neutrons = A – Z = 54 – 24 = 30
Tus naj npawb ntawm protons hauv tooj liab yog dab tsi?
29 Tsis tas li ntawd, muaj pes tsawg protons neutrons thiab electrons muaj tooj liab? Tooj liab muaj tus lej atomic ntawm 29 , yog li nws muaj 29 proton thiab 29 electrons. Qhov hnyav atomic (tej zaum hu ua atomic mass) ntawm ib lub atom yog kwv yees los ntawm cov lej ntawm cov protons thiab cov naj npawb ntawm cov neutrons hauv lub nucleus ntawm lub atom.
Dab tsi yog tus naj npawb ntawm subatomic hais hauv atom ntawm B11?
Tom qab ntawd tus lej loj yog tag nrho cov protons ntxiv rau neutrons. Rau boron-11 tag nrho cov no yog 11, thiab tsib ntawm cov hais yog protons, yog li 11− 5 = 6 neutrons
Koj tuaj yeem suav tus naj npawb ntawm neutrons hauv ib lub atom li cas?
Qhov no txhais tau tias nrhiav tus naj npawb ntawm neutrons koj rho tus naj npawb ntawm protons los ntawm tus lej loj. Nyob rau hauv lub sij hawm ntawm lub sij hawm, tus naj npawb atomic yog tus naj npawb ntawm protons, thiab cov atomic mass yog tus lej loj
Dab tsi yog tus naj npawb ntawm protons hauv atom ntawm silicon nrog cov lej loj tshaj plaws?
Piv txwv li, silicon muaj 14 protons thiab 14 neutrons. Nws atomic tooj yog 14 thiab nws atomic mass yog 28. Qhov feem ntau isotope ntawm uranium muaj 92 protons thiab 146 neutrons. Nws atomic tooj yog 92 thiab nws atomic mass yog 238 (92 + 146). 2.1 Electrons, Protons, Neutrons, thiab Atoms. Element Iron Symbol Fe Number of Electrons in Txhua Plhaub Thawj 2 Thib Ob 8 Peb 14