Question #d59c1 Chemistry Matter Basic Atomic Structure 1 Answer anor277 Sep 4, 2016 It has #8# electrons, and thus it has #8# negatively charged particles. Explanation: You have specified the #""^17O# isotope. We have given the mass number as the superscript. Why is the atomic number of oxygen superfluous? Answer link Related questions How big is an electron compared with a proton? How many electrons would it take to equal the mass of a helium nucleus? How can I draw Bohr diagrams? How do protons determine the properties of an atom? How many neutrons can an atom have? What is the atomic structure of carbon? Why is the number of protons and electrons equal in an atom? Question #2b573 Question #a2716 Question #c0a6c See all questions in Basic Atomic Structure Impact of this question 3409 views around the world You can reuse this answer Creative Commons License