13.6
a) yes Pb is more reactive that Ag, Pb before Ag
b) no, Cu after H
c) yes, Cl2 is more active than I2
4) yes, Mg is more active
13.7 (as I think)
Al ³⁺ more active than Zn²⁺, Mn can react with Zn²⁺, but not with Al ³⁺ , because Mn after Al but before Zn
You have to find the gram formula mass of C6H6 then do mass (g) = mol x GFM
Magnesium has atomic no 12
Electronic configuration given by
Or
<span> The anwser is D. Radiation, because it can travel thru air.</span>
They have the same number of electrons in their outer shells. Elements in the same group often share similar chemical properties because the outer electrons generally determine a lot of their properties