Thallium Ti Atomic Number: 81 Atomic Weight: 204.383 Half Life: 1.3 min-3.78yrs ______________________________________________________________________________ Sources: - Air, water, food, coal combustion - Cement factories, smelting -Cigarette smoke?????? - Electronic devices, semiconductors Adverse Effects: - Stores in kidney and liver - Affects nervous system, lung, heart, liver, kidney - Alopecia, vomiting, diarrhea