Which group of elements could you not use in making fireworks?

i believe that the Group 18 of the periodic table, or the inert / noble gases family because they are stable at 8 valence electrons and in result they tend to not react with other elements.

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy