Predict the formula of compounds formed between Ba and Te

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Explanation: 

The location of these elements in the periodic table .The charge on a barium ion is +2 and the charge on the telluride ion is -2 , like that of oxide and sulfide .Thus, the formula of the compound is Ba2Te2  and since we write the formula in the simplest ratio possible the formula will be BaTe. 

Answer: 

BaTe