Tellurium is in what type of bond?
type of bond refers to bond_type; Tellurium refers to element = 'te'
SELECT DISTINCT T1.bond_type FROM bond AS T1 INNER JOIN connected AS T2 ON T1.bond_id = T2.bond_id INNER JOIN atom AS T3 ON T2.atom_id = T3.atom_id WHERE T3.element = 'te'