Es
Ейнштейній
Z 99 252,0 г/мольАктиноїд Радіоактивний
| 239Es | 140 | 239,0683 | 63 630,0 | --- | 1,0 с | (3/2-) | α→235Bk β⁺→239Cf SF | --- |
| 240Es | 141 | 240,069 | 64 230,0 | --- | 6,0 с | (4-) | α→236Bk(70%) β⁺→240Cf(29,84%) β⁺SF(0,16%) | 2017 |
| 241Es | 142 | 241,0686 | 63 890,0 | --- | 5,1 с | (3/2-) | α→237Bk(100%) β⁺→241Cf | 1996 |
| 242Es | 143 | 242,0696 | 64 800,0 | --- | 17,8 с | (2+) | α→238Bk(57%) β⁺→242Cf(42,4%) β⁺SF(0,6%) | 1994 |
| 243Es | 144 | 243,0695 | 64 750,0 | --- | 22,1 с | (7/2+) | α→239Bk(61%) SF(<1%) β⁺→243Cf | 1973 |
| 243mEs | 144 | 243,0696 | 64 800,0 | --- | --- | (3/2-) | γ→243Es α→239Bk β⁺→243Cf | --- |
| 244Es | 145 | 244,0709 | 66 030,0 | --- | 37,0 с | (6+) | β⁺→244Cf(94,989%) α→240Bk(5%) β⁺SF(0,011%) | 1973 |
| 245Es | 146 | 245,0712 | 66 320,0 | --- | 1,11 хв | (3/2-) | β⁺→245Cf(51%) α→241Bk(49%) | 1967 |
| 245mEs | 146 | 245,0712 | 66 350,0 | --- | --- | (7/2+) | γ→245Es β⁺→245Cf α→241Bk | 1967 |
| 246Es | 147 | 246,0728 | 67 820,0 | --- | 7,5 хв | (4-) | β⁺→246Cf(90,097%) α→242Bk(9,9%) β⁺SF(0,003%) | 1954 |
| 247Es | 148 | 247,0736 | 68 578,0 | --- | 4,55 хв | (7/2+) | β⁺→247Cf(93%) α→243Bk(7%) SF | 1967 |
| 247mEs | 148 | 247,0737 | 68 630,0 | --- | --- | (3/2-) | γ→247Es β⁺→247Cf α→243Bk | --- |
| 248Es | 149 | 248,0755 | 70 300,0 | --- | 24,0 хв | (2-) | β⁺→248Cf(~100%) α→244Bk(0,25%) β⁺SF(3,5е-4%) | 1956 |
| 249Es | 150 | 249,0764 | 71 180,0 | --- | 1,7 год | 7/2+ | β⁺→249Cf(~100%) α→245Bk(0,57%) | 1956 |
| 250Es | 151 | 250,0786 | 73 230,0 | --- | 8,6 год | (6+) | β⁺→250Cf(100%) α→246Bk | 1956 |
| 250mEs | 151 | 250,0788 | 73 430,0 | --- | 2,22 год | (1-) | β⁺→250Cf(100%) α→246Bk | 1970 |
| 251Es | 152 | 251,08 | 74 512,0 | --- | 1,38 д | 3/2- | EC→251Cf(99,5%) α→247Bk(0,5%) | 1956 |
| 251mEs | 152 | 251,08 | 74 520,0 | --- | --- | (7/2+) | γ→251Es EC→251Cf | --- |
| 252Es | 153 | 252,083 | 77 290,0 | --- | 1,29 р | (4+) | α→248Bk(78%) EC→252Cf(22%) | 1956 |
| 253Es | 154 | 253,0848 | 79 010,5 | --- | 20,47 д | 7/2+ | α→249Bk(~100%) SF(8,7е-6%) | 1954 |
| 253mEs | 154 | 253,0849 | 79 117,0 | --- | --- | (3/2-) | γ→253Es | --- |
| 254Es | 155 | 254,088 | 81 994,2 | --- | 275,7 д | 7+ | α→250Bk(~100%) β⁻→254Fm(1,74е-4%) SF(<3е-6%) EC→254Cf | 1954 |
| 254mEs | 155 | 254,0881 | 82 074,5 | --- | 1,64 д | 2+ | β⁻→254Fm(98%) γ→254Es(<3%) α→250Bk(0,32%) EC→254Cf(0,076%) SF(<0,045%) | 1954 |
| 255Es | 156 | 255,0903 | 84 089,0 | --- | 39,8 д | (7/2+) | β⁻→255Fm(92%) α→251Bk(8%) SF(0,004%) | 1954 |
| 256Es | 157 | 256,0936 | 87 190,0 | --- | 7,6 год | (7+) | β⁻→256Fm(99,998%) β⁻SF(0,002%) | 1976 |
| 256mEs | 157 | 256,0936 | 87 190,0 | --- | 25,4 хв | (0+) | β⁻→256Fm(100%) | 1981 |
| 257Es | 158 | 257,096 | 89 400,0 | --- | 7,7 д | (7/2+) | β⁻→257Fm(100%) α→253Bk | 1987 |
| 258Es | 159 | 258,0995 | 92 700,0 | --- | 4,0 хв | --- | β⁻→258Fm α→254Bk | --- |