Ampitahao ireo singantaharo
Safidio ny singantaharo 4 farafahakeliny mba hampitaha ny toetoetr'izy ireo mifampitohy.
Ac
Actinium
#89 · Actinide
| Mass | 227.02775 u |
| Fiparitahan'ny loko | 10.07 g/cm³ |
| Mikoriana | 1323.0 K |
| Mameno | 3471.0 K |
| Electronegativity | 1.1 |
| Arika | 499.0 kJ/mol |
| Atomic radius | 195.0 pm |
| Block | f-block |
| Fanjakana (RT) | Mitambatra |
| Fandrindrana | [Rn] 6d1 7s2 |