【】How Many Valence Electrons Does Potassium Have?||number of valence electrons in potassium

How Many Valence Electrons Does Potassium  Have?

Answer:

Potassium has one valence electron.

Explanation:

Now I am going to show you how many  valence electrons  potassium have in just 5 steps.

             Step-1:

First, find the atomic number of potassium from periodic table.

From periodic table ,we see that the atomic number of potassium is 19.

                 Step-2:

We know that the atomic number of potassium is 19.So potassium has 19 protons and 19 electrons as the charge of electrons and protons are equal but opposite in nature.The charge of proton is +1 and the charge of electron is -1.


                Step-3:

Now write the electron configuration of  potassium.

K(19)=1s²2s²2p⁶3s²3p⁶4s¹

                Step-4:

K(19)=1s²2s²2p⁶3s²3p⁶4s¹

Now we will find out valence shell of potassium from the electronic configuration of potassium.

K(19)=1s²2s²2p⁶3s²3p⁶4s¹

Valence shell can be found from the highest number of principal quantum number.You know that principal quantum number is expressed by n.

K(19)=1s²2s²2p⁶3s²3p⁶4s¹

Here the highest value of n is 4.SoThe valence shell of potassium is 4s¹

                 Step-5

In this step,we will find out the valence electrons of potassium

We have to know that the electrons of valence shell are called valence electrons. 



K(19)=1s²2s²2p⁶3s²3p⁶4s¹

From the above electron configuration of potassium,we see that potassium has 1 valence electron in its valence shell.

So there is one valence electron of potassium.

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