Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Nineteen nuclides and three nuclear isomers are known for einsteinium with atomic weights ranging from 240 to 258. Kupfuura: Nineteen nuclides and three nuclear isomers are known for einsteinium with atomic weights ranging from 240 to 258. Zvose zvine mwaranzi uye nucleide yakagadzikana zvikuru, 252Es, ine hafu youpenyu hwamazuva 471.7. Isotopes inotevera yakasimba ndeye 254Es (hafu yeupenyu hwemazuva 275.7), 255Es (39.8 mazuva) uye 253Es (20.47 mazuva). Zvose zvasara zvine hafu youpenyu hupfupi kupfuura maawa 40, uye zvizhinji zvacho zvinoparara mumaminiti asingasviki 30. Pakati pezvose zvitatu, 254mEs ndiyo inonyanya kugadzikana ine hafu yeupenyu hwemaawa 39.3.  Mubvunzo: Chii chinonzi hafu youpenyu hwe254mEs?
Maawa 39.3