Lead Protons Neutrons Electrons (And How to Find them?)

Lead has 82 protons, 125 neutrons and 82 electrons.

But how will you find the number of protons, neutrons and electrons in Lead (Pb)?

Well, it is very easy to find the protons, neutrons and electrons of lead atom.

Here I have given a very simple method for finding the protons, neutrons and electrons of lead atom.

Let’s dive right into it!

Finding the Protons, Neutrons and Electrons in Lead

How to find protons?

• The number of protons can be found by knowing the atomic number of that atom. ^[1]

How to find neutrons?

• The number of neutrons can be found by subtracting the atomic number from its atomic mass.

How to find electrons?

• For a neutral atom, the number of electrons can be found by knowing the atomic number of that atom.

Let’s calculate the number of protons, neutrons and electrons in lead.

If you don’t want to read, then you can also watch this video.

#1 Number of Protons in Lead

If you have a periodic table with you, then most of the answers are in front of you.

You can see the elements, their atomic number and their atomic mass from the periodic table.

Now here our element is Lead (Pb).

So from the above periodic table, you can see that the atomic number of lead is 82.

As the atomic number of lead is 82, it has a total of 82 protons in its nucleus.

Thus, the number of protons in Lead is 82.

#2 Number of Neutrons in Lead

In order to find the number of neutrons of lead atom, you should know its atomic mass first.

The number of neutrons in lead can be obtained by subtracting the atomic number from its atomic mass.

The atomic mass of lead is 207.2 u (which you can round it to 207). ^[2]

So from this atomic mass (i.e 207), you have to subtract its atomic number (i.e 82).

So you will get 207 – 82 = 125.

Thus, the number of neutrons in Lead is 125.

#3 Number of Electrons in Lead

For a neutral atom, the number of electrons and the number of protons are the same.

Here, the lead atom is a neutral atom.

So the number of electrons in lead is equal to its number of protons (which is also equal to its atomic number).

In the beginning, we have found that the number of protons in lead is 82.

Thus, the number of electrons in Lead is 82.

Summary

Number of Protons in Lead

• The number of protons can be found by knowing the atomic number of that atom.
• Number of Protons in Lead = Atomic number of Lead = 82

Number of Neutrons in Lead

• The number of neutrons can be found by subtracting the atomic number from its atomic mass.
• Number of Neutrons in Lead = Atomic mass of Lead – Atomic number of Lead = 207 – 82 = 125

Number of Electrons in Lead

• For a neutral atom, the number of electrons can be found by knowing the atomic number of that atom.
• Number of Electrons in Lead = Atomic number of Lead = 82

I hope you have understood the simple method for finding the protons, neutrons and electrons of lead atom.

Check out related topics for more practice;
Bismuth protons neutrons electrons
Radon protons neutrons electrons
Scandium protons neutrons electrons
Titanium protons neutrons electrons
Vanadium protons neutrons electrons