According to Le Chatelier's Principle, to increase the rate of the forward reaction we add more of the reactants to encourage more collisions and production of more products. If it is endothermic, more heat should be added. If it is endothermic, more heat should be released from the system.
Answer:
There are 15 total Carbon Atoms
there are 5 groups of 3
5(C3)
5x3 = 15
It would be: 1s2, 2s2, 2p6, 3s2