【】How Many Valence Electrons Does Sodium(Na) Have?||Number of valence electrons in sodium

How Many Valence Electrons Does Sodium(Na)  Have?

Answer:

Sodium has one valence electrons.

Explanation:

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

             Step-1:

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

From periodic table ,we see that the atomic number of sodium is 11.

                 Step-2:

We know that the atomic number of sodium is 11.So sodium has 11 protons and 11 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  sodium.

Na(11)=1s²2s²2p⁶3s¹

                Step-4:

Na(11)=1s²2s²2p⁶3s¹

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

Na(11)=1s²2s²2p⁶3s¹

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

Na(11)=1s²2s²2p⁶3s¹

Here the highest value of n is 3.SoThe valence shell of sodium is 3s¹.

                 Step-5

In this step,we will find out the valence electrons of sodium.We have to know that the electrons of valence shell are called valence electrons. 


Na(11)=1s²2s²2p⁶3s¹

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

So there is one valence electron of sodium.


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