Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Isotope | Half-life | Decay mode | Discovery year | Reaction |
| --- | --- | --- | --- | --- |
| 263 Hs | 0.74 ms | α, SF | 2008 | 208 Pb( 56 Fe,n) |
| 264 Hs | ~0.8 ms | α, SF | 1986 | 207 Pb( 58 Fe,n) |
| 265 Hs | 1.9 ms | α, SF | 1984 | 208 Pb( 58 Fe,n) |
| 265m Hs | 0.3 ms | α | 1984 | 208 Pb( 58 Fe,n) |
| 266 Hs | 2.3 ms | α, SF | 2000 | 270 Ds(—,α) |
| 267 Hs | 52 ms | α, SF | 1995 | 238 U( 34 S,5n) |
| 267m Hs | 0.8 s | α | 1995 | 238 U( 34 S,5n) |
| 268 Hs | 0.4 s | α | 2009 | 238 U( 34 S,4n) |
| 269 Hs | 3.6 s | α | 1996 | 277 Cn(—,2α) |
| 269m Hs | 9.7 s | α | 2004 | 248 Cm( 26 Mg,5n) |
| 270 Hs | 3.6 s | α | 2004 | 248 Cm( 26 Mg,4n) |
| 271 Hs | ~4 s | α | 2004 | 248 Cm( 26 Mg,3n) |
| 272 Hs | 40? s | α, SF ? | unknown | — |
| 273 Hs | 0.24 s | α | 2004 | 285 Fl(—,3α) |
| 274 Hs | 1? min | α, SF ? | unknown | — |
| 275 Hs | 0.15 s | α | 2003 | 287 Fl(—,3α) |
| 276 Hs | 1? h | α, SF ? | unknown | — |
| 277 Hs | 2 s | α | 2009 | 289 Fl(—,3α) |
| 277m Hs ? | ~11 min ? | α | 1999 | 289 Fl(—,3α) |
Question:
What is the decay mode of the 265m hs isotope discovered in 1984?
Answer:
α