Select the correct answer. an atom of nitrogen has seven electrons. which diagram correctly represents the arrangement of these electrons? a. two blue boxes representing 1s and 2s orbitals, and one set of three blue boxes representing 2p orbitals; 1s and 2s orbitals have a pair of up and down arrows; 2p orbitals show one filled orbital with a pair of up and down arrows, a partially filled orbital with one up arrow, and an empty orbital b. two blue boxes representing 1s and 2s orbitals, and one set of three blue boxes representing 2p orbitals; 1s orbital has a pair of up-facing arrows and the 2s orbital has a pair of down-facing arrows; 2p orbitals show one filled orbital with a pair of up-facing arrows, a partially filled orbital with one down-facing arrow, and an empty orbital c. two blue boxes representing 1s and 2s orbitals, and one set of three blue boxes representing 2p orbitals; 1s and 2s orbitals have a pair of up and down arrows; 2p orbitals show three partially filled orbitals with a single up-facing arrow d. two blue boxes representing 1s and 2s orbitals, and one set of three blue boxes representing 2p orbitals; 1s orbital has a pair of up-facing arrows and 2s orbital has a pair of down-facing arrows; 2p orbitals show three partially filled orbitals with one up-facing arrows in two of the orbitals and one down-facing arrow in the third