+2 compounds are found in some tellurium halides , like tellurium ( II ) chloride and tellurium ( II ) bromide . The other halogens do not form halides with tellurium in the +6 oxidation state , but only tetrahalides ( ( ( Tellurium tetrachloride ) ) , ( ( Tellurium tetrabromide ) ) and ( ( Tellurium tetraiodide ) ) ) in the +4 state , and other lower halides ( , , , and two forms of ) .