Which Of The Following Is A Reason Conflicts Over Zoning Decisions Can Become A Divisive Issue?, NOV 16, 2021 | City Council Afternoon Session, 56.19 MB, 40:55, 705, City of San Jose, CA, 2021-11-17T02:42:35.000000Z, 19, , , , , , 0, which-of-the-following-is-a-reason-conflicts-over-zoning-decisions-can-become-a-divisive-issue, KAMPION Magnesium, in its elemental form, has 12 protons and 12 electrons. The neutrons are a different matter. The neutrons are a different matter. Magesium's average atomic mass is 24. 305 atomic mass units, but no magnesium atom has exactly this mass. A magnesium atom has the highest number of electron energy levels. The four quantum numbers are 3, 2, +2, +1, 2. The nucleus is made up of 12 protons (red) and 12 neutrons (orange). A magnesium atom has the highest number of electrons per unit. So all neutral magnesium atoms have 12 protons and 12 electrons. Isotopes of an element differ in the number of neutrons (n0). There are three stable i...