How do you calculate the theoretical yield?

When you know the number of moles that you expect, you will multiply by the molar mass of the product to find the theoretical yield in grams. In this example, the molar mass of CO2 is about 44 g/mol. (Carbon's molar mass is ~12 g/mol and oxygen's is ~16 g/mol, so the total is 12 + 16 + 16 = 44.

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

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

indium, and thallium have three electrons i think