What is the valency of potassium?

The atomic number of K (Potassium) is 19. So it's electronic configuration becomes 1s² 2s² 2p6 3s² 3p6 4s1 Only one electron is present in it's 4th (outermost) shell. Others are completely filled. So valency of K is 1. Thanks. read more

Potassium is an alkali metal. So it contains 1 electron in its valenced shell or orbital. So its valency is also 1. Actually this is the method to calculate valency. Suppose, no. of valence electrons of any atom ='a' When 'a' is less than or equal to 3 then valency of that atom is equal to ‘a’. read more

K = 1s^2 2s^2 2p^6 3s^2 3p^6 4s^1. This simplifies to a noble gas notation of:K = [Ar] 4s^1 Potassium (K) is an Alkali metal found in the first column (Group I) and in the fourth row (period 4) of the periodic table. read more