What is a key difference between an electrolytic cell and a voltaic cell a. the anode is assigned the negative charge. b. the anode is assigned the positive charge. c. the electrodes are connected with a wire. d. the electrons move from the anode to the cathode. e. there are two half-reactions.

In electrolytic cell , the anode is assigned to the positive electrode while in voltaic cell , cathode is assigned to the positive electrode .

In electrolytic cell , electron flow from cathode to anode while in voltaic cell , electrons flow from anode to cathode .

So your answer would be D

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.