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Actinium
| A
| Actinium | |
| gen. | actinium |
| chem. | actinium |
| празäничная толпа | |
| gen. | festive crowd |
| A | |
| med. | ampere; adenine; alanine; 2-aminopropanoic acid; α-aminopropionic acid |
| a | |
| med. | angular aperture |
| |||
| actinium | |||
| actinium (Ac) | |||
| actinium A radioactive element of the actinide series, occurring as a decay product of uranium. It is used as an alpha particle source and in neutron production | |||
| Actinium: 98 phrases in 3 subjects |
| Nuclear physics | 10 |
| Physics | 2 |
| Радиоактивное излучение | 86 |