In 1814, the Swedish chemist Berzelius advocated the name kalium for potassium, with the chemical symbol K. Of K is 19 so its electronic configuration will be 2,8,8,1 that is 1 valence electron is there in. In 1807, Humphry Davy produced the element via electrolysis: in 1809, Ludwig Wilhelm Gilbert proposed the name Kalium for Davy's 'potassium'. There is 1 valence electrons in potassium.
In 1797, the German chemist Martin Klaproth discovered 'potash' in the minerals leucite and lepidolite, and realized that 'potash' was not a product of plant growth but actually contained a new element, which he proposed calling kali.
The symbol K stems from kali, itself from the root word alkali, which in turn comes from Arabic: القَلْيَه al-qalyah 'plant ashes'. When Humphry Davy first isolated the pure element using electrolysis in 1807, he named it potassium, which he derived from the word potash. Thus, the group-IA elements (alkalis) and group-IB (noble metals) having formally one valence electron of s-type display considerably different behaviour under. Discovery of potassiumThe English name for the element potassium comes from the word potash, which refers to an early method of extracting various potassium salts: placing in a pot the ash of burnt wood or tree leaves, adding water, heating, and evaporating the solution. 7 207.131The ionization energy of any element increases as each successive valence electron is removed, but itincreases dramatically when a core electron is.
