The weak force is the one that allows a quark to turn into a different flavor of quark, thus allowing a neutron to transform into a proton, or a proton to transform into a neutron.
In the case of...
Yes. The Strong Nuclear Force is the force that holds the protons and neutrons together in the nucleus and is transmitted by gluons. It is the glue that holds the nucleus together. The Weak Force is...
No. Lightning is electrical, meaning that electrons move from one place to another. It isn't "nuclear" in any way: The nucleus of an atom contains protons and neutrons, the electrons whiz around the...