Vitamin D is sometimes called the sunshine vitamin because a. it is available in fresh orange juice b. exposure to sunlight converts a precursor form to vitamin D c. it can be destroyed by exposure to sunlight d. it is the yellow-orange color of the sun

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.