How many orbits are contained in an atom with atomic number 13? by Sunday | Dec 10 | Chemistry WAEC | 0 comments A. 7 B. 6 C. 5 D. 3 Correct Answer: Option D D. 3 Users Also Read These:The nucleon number and the proton number of a…The mass of an element is 27 and its atomic number…An element having the atomic number 17 will resemble…if an element X with atomic number 13 combines with…An isotope has an atomic number of 15 and a mass…