Thola izingxenye
Khetha kuze kube yizinto ezi-4 ukuze ulinganise izakhiwo zabo ngakwesokudla.
Pm
Promethium
#61 · I-Lanthanum
| I-Mass | 145.0 u |
| Ubukhulu | 7.26 g/cm³ |
| Ukuncibilika | 1315.0 K |
| Ukubhoboza | 3273.0 K |
| Electronegativity | 1.13 |
| I-Ionization Energy | 540.0 kJ/mol |
| I-Atom Radius | 183.0 pm |
| I-block | f-block |
| Isifunda (RT) | Iqinile |
| Ukuhlela | [Xe] 4f5 6s2 |