1.) What are the possible values of the principal quantum number n? A.) represented by the formula: k!, where k is a positive integer B.)all the integer: -3,-2,-1,0,1,2,3, etc. C.)represented by the formula: n = 2k + 1, where k is a positive integer D.)all the positive integers: 1,2,3, etc. E.)all the non-negative integers: 0,1,2,3, etc. 2.) What does the principal quantum number determine? Check all that apply. A.) the energy of an orbital B.)the shape of the orbital C.)the overall size of an atom D.)the orientation of the orbital E.)the overall size of an orbital F.)the possible number of electorns on particular orbital G.)the energy of the electron on the outer shell