1. how many moles are 1.20x10^25 atoms of phosphorous? 2. how many atoms are in 0.750 moles of zinc? 3. how many molecules are in 0.400 moles of n2o5? 4. find the number of moles of argon in 452 g of argon. 5. find the grams in 1.26 x 10-4 mol of hc2h3o2. show work on all

answer carbon and three oxygen atoms;

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.