Strontium metal can be obtained by the electrolysis of molten bromide SrBr2.Why is an atmosphere of argon used around the cathode?A) argon keeps strontium moltenB) argon stops the molten strontium riding too high in the tubeC) a thin film of a compound of strontium and argon forms on the surface protecting the freshly formed metal.D) without the argon the strontium oxide would form in the airPlease do explain why it’s A B C or D
