Barium Ba

Atomic Number: 56
Atomic Mass: 137-327
Half-life: 2.6 mins to 10.5 years

Source:

• Drilling mud, paints, bricks, tiles, brazil nuts, seaweed, fish, coal combustion
• Barium sulfate (for X-Ray use) not water soluble, not toxic others are.

Adverse Effects:

• Acute: paralysis
• Chronic: hypertension, cardiac dysrythmia, muscle weakness.