Ampitahao ireo singantaharo
Safidio ny singantaharo 4 farafahakeliny mba hampitaha ny toetoetr'izy ireo mifampitohy.
Fm
Fermium
#100 · Actinide
| Mass | 257.09511 u |
| Fiparitahan'ny loko | 9.7 g/cm³ |
| Mikoriana | 1800.0 K |
| Electronegativity | 1.3 |
| Arika | 627.0 kJ/mol |
| Block | f-block |
| Fanjakana (RT) | Mitambatra |
| Fandrindrana | [Rn] 5f12 7s2 |