Why does the compound cbr5 does not exist?

Answer 1

Carbon has four valence electrons and can form a maximum of four single bonds. CBr5 requires the carbon to form 5 bonds, and this is too energetically unfavourable to occur.

Answer 2

Carbon is unable to form stable compounds with more than four bromine atoms due to the limited number of valence electrons available in carbon. In CBr5, carbon would need to have more than eight valence electrons, which is energetically unfavourable.

Answer 3

The Element carbon can have a maximum of 4 bonds with other atoms. CBr5 would require it to form 5 bonds.