Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Chimiya weSoviet D. K. Dobroserdov akanga ari musayendisiti wokutanga kutaura kuti akanga awana eka-caesium, kana kuti francium. Muna 1925, akacherechedza kushomeka kwemwaranzi mupatasiyamu, imwe simbi ine alkali, uye akapedzisa zvisiri izvo kuti eka-caesium yakanga ichisvibisa muyenzaniso (iyo radioactivity kubva muyenzaniso yaive kubva kune yakasikwa inoitika potassium radioisotope, potassium-40). Akabudisa rondedzero pamusoro pezvaakanga afanotaura nezvezvinhu zveeka-caesium, umo akatumidza chinhu chacho kuti russium achitevedzera nyika yokumusha kwake. Nokukurumidza pashure pacho, Dobroserdov akatanga kuisa pfungwa dzake pabasa rake rokudzidzisa paPolytechnic Institute of Odessa, uye haana kutevera chinhu chacho mberi. Gore rakatevera, makemikari echiChirungu Gerald J. F. Druce naFrederick H. Loring vakaongorora X-ray mifananidzo yemanganese ((II) sulfate. Vakacherechedza mitsetse yomumvuri iyo vakafungidzira kuva yeeka-caesium. Vakazivisa kuwanwa kwavo kwechinhu 87 uye vakapa zita rokuti alkalinium, sezvo raizova simbi inorema zvikuru yealkali. Muna 1930, Fred Allison weAlabama Polytechnic Institute akataura kuti akawana chinhu 87 paakaongorora pollucite uye lepidolite achishandisa muchina wake wemagnet-optical. Allison akakumbira kuti zita racho ritumidzwe kuti virginium zvichibva mudunhu rake rokumusha reVirginia, pamwe chete nezviratidzo Vi uye Vm. Muna 1934, H.G. MacPherson weUC Berkeley akaramba kushanda kwechigadzirwa chaAllison uye kuvimbika kwekuwanikwa kwake. Muna 1936, nyanzvi yefizikisi yeRomania Horia Hulubei uye mumwe wake weFrance Yvette Cauchois vakaongororawo pollucite, panguva ino vachishandisa yavo yepamusoro-resolution X-ray mudziyo. Vakacherechedza mitsetse inoverengeka isina kusimba, iyo vakafungidzira kuva iya yechinhu 87. Hulubei naCauchois vakashuma kuwanwa kwavo ndokuronga zita rokuti moldavium, pamwe chete nechiratidzo Ml, pashure peMoldova, ruwa rweRomania umo Hulubei akaberekerwa. Muna 1937, basa raHulubei rakashoropodzwa nemuAmerican physicist F. H. Hirsh Jr., uyo akaramba nzira dzaHulubei dzekutsvakurudza. Hirsh akanga ane chokwadi chokuti eka-caesium yaisazowanwa mumasikirwo, uye kuti Hulubei panzvimbo pezvo akanga aona...  Mubvunzo: Inhamba ipi yesimbi yakawanwa muna 1930?
Chinhu 87