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(Europium), Eu - . III . , . 63, . 151,96, . . 151 (47,82%) 153 (52,18%). . 4s2p6d10f75s2p66s2. . 5,664, 11,25 24,7 . . u 0,202 ( ), u3+ 0,097 . 1,01. - - , =0,45720 . . 5,245 /3, t=822 , t=1597 . 9,2 /, 146 /, . 27,6 /., . 8,13.10-5 . ( 25 ). , . 22.10-8. . +2 +3. . , . . . u . Y, Zn . , u3+ , . . (b-- 152u (T1/2= 13,33 .) 154u (T1/2=8,8 .), g- . .

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