Krypton What isotope has 36 electrons in an atom? Start your trial now! Co-59=32 neutrons, C0-60=33 neutrons. Silicon Answer and Explanation: Silicon has 14 protons and 14 neutrons. close. 4. helium as an atomic mass of _____ because it contains two protons and two neutrons. Which element has 28 protons? Sulfur-34 is composed of 16 protons, 18 neutrons, and 16 electrons. What is the mass number of the element ? It is the only element that has 13 protons. If an inter-nucleus neutron decays and emits an electron, this neutron transforms into a proton. different atoms have different numbers of _________. . 38 terms. isotope. ; 2 What element has a mass number of 65? what element has 14 protons and 15 neutrons - Lisbdnet.com Biology Flashcards | Quizlet Solved A particular iosotope of an element has 27 protons | Chegg.com what element has a mass number of 65 and 36 neutrons 7 What element has 15 protons and 16 neutrons? ; 3 What elements mass number is 36? The isotope Al-27 has 13 protons and 14 neutrons. Copper has two isotopes, 63Cu (69.15%, mass=62.9300 amu) and 65Cu (30.85%, mass = 64.928 amu), and so the respective mole fractions are 0.6915 and 0.3085, resulting in an average atomic weight of 63.55 amu, even though there is not a single atom that weighs 63.55 amu. 100% (1 rating) 8 What isotope has 14 protons and 15 neutrons enter the name of the element followed by a hyphen and the mass number? Number of Protons, Neutrons, and Electrons in an Atom element j has 27 protons and 32 neutrons, element l has 27 protons and 33 neutrons. Nickel has 28 protons. What isotope has 32 protons? - FindAnyAnswer.com silicon For example, silicon has 14 protons and 14 neutrons.