Why would you not use elements on the right side of the periodic table as building material

In which direction will the following reaction go if the standard reduction potentials are 0.80 v for ag/ag+ and –0.44 v for fe/fe2+? ag+ + fe → ag + fe2+ a.)forward b.)the reaction cannot occur. c.) not enough information is given. d.) reverse

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

What term describes technology that operates on an atomic level