Is lithium more reactive than potassium?

No, potassium is more reactive than lithium because lithium is having small electronic configuration that is 1S2 2S1. Soo.. close to nucleus .But in potassium there is large electronic configuration which is farther from nucleus hence, this is more reactive. read more

Lithium is less reactive than both sodium and potassium because of kinetic factors, not because of thermodynamic factors. Lithium is harder, and it is also less easily melted than sodium and potassium. It is also less quickly dispersed than the other two during reactions. read more

Potassium is larger than lithium. Thus, its valence electron is more loosely held than lithium's. Looking at the even larger elements, rubidium is more reactive than potassium because of the same reasoning. It all depends on how far that valence electron is when compared to other members of the family. read more

Yes, potassium is more reactive than lithium, since although they both need to lose one electron to have full outer shells, potassium's outer electron is furthest from the positive attractions of the nucleus. read more