Determine if each of the following are ionic or covalent compounds. iron (iii) chloride Mg(C2H3O2)2 dinitrogen pentoxide 1. ionic 2. covalent Al2O3 P4O10 Match the items below with their correct response. Not all choices may be correct. and a choice may be used more than once (i.e., two questions can have the same answer). How many neutrons are in neon-20 (20Ne)? 1. 5 How many electrons are in 2. 9 the sodium cation (Na+)? How many electrons are in 3. 10 the fluoride ion (F)? What's the mass number 4. 11 (Z) of a boron atom containing 5 neutrons? 5. 20