can you please name some compounds that it is part of?
Organothallium compounds like trimethylthallium and triethylthallium.
Thallium
Organothallium compounds tend to be thermally unstable, in concordance with the trend of decreasing thermal stability down group 13. The chemical reactivity of the Tl–C bond is also the lowest in the group, especially for ionic compounds of the type RTlX. Thallium forms the stable [Tl(CH)] ion in aqueous solution; like the isoelectronic Hg(CH) and [Pb(CH)], it is linear. Trimethylthallium and triethylthallium are, like the corresponding gallium and indium compounds, flammable liquids with low melting points. Like indium, thallium cyclopentadienyl compounds contain thallium(I), in contrast to gallium(III).
what is thallium? A chemical element. what are its characteristics? A thallium atom has 81 electrons arranged in the configuration [Xe]4f5d6s6p. It is malleable and sectile enough o be cut with a knife at room temperature. It has a metallic luster. how many isotopes does it have? 41. how is it produced? It is obtained as a by-product of smelting of copper, zinc, and lead ores. is it used in medicines? It is used for stress tests for risk stratification in patients with coronary artery disease. what are the symptoms of the disease that you just mentioned? Angina, shortness of breath, sweating , nausea or vomiting and lightheadedness. can the element you mentioned before be used in electronics? Yes, it is used in photoresistors. what are these? A passive component that decreases resistance with respect to receiving luminosity on the component's sensitive surface.. is the element you mentioned before toxic? Yes, and in cases fatal. has anybody ever died from it? Yes.
wiki:19618772
Thallium [SEP] Organothallium compounds
Organothallium compounds tend to be thermally unstable, in concordance with the trend of decreasing thermal stability down group 13. The chemical reactivity of the Tl–C bond is also the lowest in the group, especially for ionic compounds of the type RTlX. Thallium forms the stable [Tl(CH)] ion in aqueous solution; like the isoelectronic Hg(CH) and [Pb(CH)], it is linear. Trimethylthallium and triethylthallium are, like the corresponding gallium and indium compounds, flammable liquids with low melting points. Like indium, thallium cyclopentadienyl compounds contain thallium(I), in contrast to gallium(III).