Hs
Hassium
Z 108 269.0 g/molTransition Metal Radioactive
| 263Hs | 155 | 263.1285 | 119,680.0 | --- | 900.0 µs | (3/2+) | α→259Sg(100%) SF | 2009 |
| 263mHs | 155 | 263.1288 | 120,000.0 | --- | 1.0 ms | (11/2-) | α→259Sg(100%) SF | --- |
| 264Hs | 156 | 264.1284 | 119,563.0 | --- | 700.0 ms | 0+ | α→260Sg(70%) SF(30%) | 1986 |
| 265Hs | 157 | 265.1298 | 120,900.0 | --- | 1.96 ms | (3/2+) | α→261Sg(100%) SF | 1984 |
| 265mHs | 157 | 265.13 | 121,130.0 | --- | 360.0 µs | (11/2-) | α→261Sg(100%) γ→265Hs | 1995 |
| 266Hs | 158 | 266.13 | 121,140.0 | --- | 3.0 ms | 0+ | α→262Sg(76%) SF(24%) | 2001 |
| 266mHs | 158 | 266.1312 | 122,240.0 | --- | 280.0 ms | (9-) | α→262Sg(100%) | 2011 |
| 267Hs | 159 | 267.1317 | 122,660.0 | --- | 55.0 ms | --- | α→263Sg(>80%) SF | 1995 |
| 267mHs | 159 | 267.1317 | 122,700.0 | --- | 990.0 µs | --- | α→263Sg γ→267Hs | 2004 |
| 268Hs | 160 | 268.132 | 122,970.0 | --- | 1.4 s | 0+ | α→264Sg(100%) | 2010 |
| 269Hs | 161 | 269.1336 | 124,490.0 | --- | 15.0 s | (9/2+) | α→265Sg(100%) | 1996 |
| 270Hs | 162 | 270.1343 | 125,110.0 | --- | 9.0 s | 0+ | α→266Sg(100%) SF | 2003 |
| 271Hs | 163 | 271.1371 | 127,690.0 | --- | 10.0 s | --- | α→267Sg SF | 2008 |
| 272Hs | 164 | 272.1385 | 129,000.0 | --- | 10.0 s | 0+ | α→268Sg SF | --- |
| 273Hs | 165 | 273.1415 | 131,770.0 | --- | 1.06 s | --- | α→269Sg(100%) SF | 2010 |
| 274Hs | 166 | 274.1432 | 133,410.0 | --- | 500.0 ms | 0+ | α→270Sg SF | --- |
| 275Hs | 167 | 275.1465 | 136,490.0 | --- | 280.0 ms | --- | α→271Sg(100%) | 2004 |
| 276Hs | 168 | 276.1484 | 138,190.0 | --- | 100.0 ms | 0+ | α→272Sg SF | --- |
| 277Hs | 169 | 277.1518 | 141,380.0 | --- | 12.0 ms | --- | SF(100%) α→273Sg | 2010 |
| 277mHs | 169 | 277.1519 | 141,480.0 | --- | 2.17 m | --- | SF(100%) | 2012 |
| 278Hs | 170 | 278.1538 | 143,220.0 | --- | 2.0 s | 0+ | SF(100%) α→274Sg | 2016 |
| 279Hs | 171 | 279.1573 | 146,500.0 | --- | 1.0 s | --- | α→275Sg SF | --- |
| 280Hs | 172 | 280.1593 | 148,420.0 | --- | 100.0 ms | 0+ | α→276Sg SF | --- |