←Mo   Mn↑   ↓Pm   Ru→

Technetium ∙ technétium ∙ tecnezio ∙ tecnecio
group VII: R₂O7

• melting point: 2172°C
• boiling point: 4877°C
• density: 11.5 g/cm³

☢ radioisotopes:
Tc-99m (T1/2=6 h) fission product , medical