Transition Metals From the groups 8 to 11 in the periodic table shown above, which metal is the least expensive? Enter Your Answer: From the groups 8 to 11 in the periodic table shown above, which metal is the most expensive? Enter Your Answer: A carbon atom "wants" to obey the octet rule, it "wants" 8 electrons for stability. What number of electrons do most transition metals need for stability? Enter Your