【】How Many Valence Electrons Does Boron(B) Have?||Number of Valence Electrons of Boron(B)

How Many Valence Electrons Does Boron(B) Have?

Answer:

Boron has three valence electrons.

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

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             Step-1:

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

From periodic table ,we see that the atomic number of boron is 5.

                 Step-2:

We know that the atomic number of boron is 5.So boron has 5 protons and 5 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 boron .

B(5)=1s²2s²2p¹

                Step-4:

B(5)=1s²2s²2p¹

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

B(5)=1s²2s²2p¹

Valence shell can be found from the highest number of principal quantum number.

You know that principal quantum number is expressed by n.

B(5)=1s²2s²2p¹

Here the highest value of n is 2.SoThe valence shell of boron is 2s²2p¹

                 Step-5

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

We have to bear in mind that the electrons of valence shell are called valence electrons.

B(5)=1s²2s²2p¹

From the above electron 

configuration 

of boron,we see 

that boron has 3

valence electron in its 

valence shell(2s²2p¹).

So there are three valence electrons of boron.

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