(F-32) x 5/9 {Ans: = celsius}Ernest Rutherford {Ans: Conducted an experiment in which he shot alpha particles at gold foil; roved there was a small, dense nucleus with a positive charge and that protons are positive}Neutron Number {Ans: Atomic Mass - Atomic Number}Tin {Ans: Sn(2+) & Sn(4+)}Iron {Ans: Fe(2+) & Fe (3+)}7 {Ans: hepta}