Uyini umehluko phakathi kwe-barium ne-strontium?

Umehluko osemqoka phakathi kwe-barium ne-strontium ukuthi insimbi ye-barium isebenza ngokwedlula nge-strontium ngensimbi.

Yini i-barium?

I-Barium yinto yamakhemikhali enophawu lwe-BA ne-Atomic Inombolo 56. Kubonakala njengensimbi ye-silvery-grey nge-tint ephuzi eliphuzi. Nge-oxidation emoyeni, ukubukeka okumhlophe okumhlophe okuvumayo kungazelelwe ukunikeza ungqimba olumpunga olumnyama oluqukethe i-oxide. Le nto yamakhemikhali itholakala etafuleni lesikhathi esiseqenjini 2 nesikhathi 6 ngaphansi kwama-alkaline ndr izinsimbi zomhlaba. Yinto ye-S-block ngokucushwa kwe-elektroni [xe] 6s2. Kuqinile ekushiseni okujwayelekile nengcindezi. Inendawo ephezulu yokuncibilika (1000 k) nephuzu elibilayo eliphakeme (2118 k). Ubukhulu buphakeme kakhulu futhi (cishe ngo-3.5 g / cm3).

I-Barium neStrontium ngamalungu amabili e-Alkaline Earth Metals Group (Iqembu 2) lethebula lesikhathi. Lokhu kungenxa yokuthi la ma-athomu wensimbi anokuhlelwa kwe-elekthroni ye-NS2. Yize ziseqenjini elifanayo, zingezikhathi ezihlukile, ezizenza zihluke kancane komunye nomunye ezindaweni zazo.

Ukuvela kwemvelo kwe-barium kungachazwa njenge-promardial, futhi inesakhiwo esigxile emzimbeni we-cubic crystal. Ngaphezu kwalokho, i-barium yinto ye-paramagnetic. Okubaluleke kakhulu, i-barium inesisindo esilinganiselwe esilinganiselwe kanye nokusebenza okukagesi okuphezulu. Lokhu kungenxa yokuthi le metal kunzima ukuyihlanza, okwenza kube nzima ukuthola iningi lezakhiwo zalo. Lapho ubheka ukusatshalaliswa kwamakhemikhali, i-barium inokuvuselelwa kabusha okufana ne-magnesium, calcium, kanye ne-strontium. Kodwa-ke, i-barium iyasebenza kakhulu kunalezi zinsimbi. Isimo se-oxidation esijwayelekile se-barium singuye +2. Muva nje, ucwaningo lokucwaninga luthole ifomu le-barium +1. I-barium ingasabela ngama-chalcogens ngendlela yokuphendula okuxolelisayo, ukukhulula amandla. Ngakho-ke, i-barium yensimbi igcinwa ngaphansi kwamafutha noma esimweni se-inert.

Yini i-strontium?

I-Strontium yinto yamakhemikhali enophawu lwe-sr ne-atomic inombolo 38. Kuyinto yensimbi yomhlaba eqenjini 2 nesikhathi esingu-5 setafula lesikhathi. Kuqinile ekushiseni okujwayelekile nengcindezi. Iphuzu lokuncibilika le-strontium liphezulu (1050 k), futhi iphuzu elibilayo liphezulu (1650 k). Ubuningi bayo buphakeme futhi. Yinto ye-S block enokulungiswa kwe-elektroni [kr] 5s2.

I-Strontium ingachazwa njengensimbi ye-silvery ehlukanisiwe enombala ophuzi ophuzi. Izakhiwo zalesi sinsimbi ziphakathi phakathi kwezinto zamakhemikhali ezingomakhelwane ze-calcium ne-barium. Le nsimbi ithambile kune-calcium futhi inzima kune-barium. Ngokufanayo, ubukhulu be-strontium buphakathi kwe-calcium ne-barium. Kune-allotropes emithathu ye-strontium njengoba ne-.Strontium ikhombisa ukuphendula okuphezulu ngamanzi nomoya-mpilo. Ngakho-ke, ngokwemvelo kwenzeka kuphela kumakhompiyutha eceleni kwezinye izinto ezinjenge-strontiane ne-Celestine. Ngaphezu kwalokho, kudingeka sikugcine ngaphansi kwama-hydrocarbon awuketshezi anjengewoyela wamaminerali noma i-kakhafini ukugwema i-oxidation. Kodwa-ke, i-strontium entsha ye-strontium isheshe iphenduka ibe ngombala ophuzi lapho ivezwa umoya ngenxa yokwakhiwa kwe-oxide.

Uyini umehluko phakathi kwe-barium ne-strontium?

I-Barium neStrontium zibalulekile emhlabeni we-Alkaline Earth Metals eqenjini 2 lethebula lesikhathi. Umehluko osemqoka phakathi kwe-barium ne-strontium ukuthi insimbi ye-barium isebenza ngokwedlula nge-strontium ngensimbi. Ngaphezu kwalokho, i-barium ilula kakhulu kune-strontium.