Persephone has no weaknesses - she is a Greek goddess.
We are not told the weaknesses of gods/goddesses in Greek myth. All weaknesses are assumed by the individual.
The gods and goddesses of Greek myth are not given a list of strengths and weaknesses; these are left to the individual to interpret.
The Greek gods and goddesses have the same human strengths and weaknesses that we do such as jealousy, wisdom, anger, happiness, love, integrity, even they give into temptation, fear etc. so it's easier for us humans to relate to them because they've been there and done that already...
Greek gods, and goddesses drank wine.
It's impossible for a mortal to become a God
no they had special powers
There are twelve main gods and goddesses(the Olympians), but there are lots of other minor gods and goddesses in Greek mythology.
Here are some of the Greek gods and goddesses (feel free to add to this list):ZeusPoseidonHadesHeraAthenaHestiaArtemisAresHermesKronosDemeterPersephoneAphrodite
No one in the modern world is related to the Greek gods and goddesses; they are mythology.
There are many more than nine goddesses in Greek mythology. However, nine of them are:HeraAthenaArtemisDemeterPersephoneAphroditeEileithyiaHestiaIris
Weaknesses are the interpretation of the individual. Like most Greek Gods, Artemis was of duel nature: meaning she was both a goddess of birth and protecting young women, and also the goddess which struck women down in death.
There isn't really a set 'list' of Greek gods and goddesses. There are countless gods and goddesses in Greek mythology. However, Iris is definitely considered one of them.