By Team Aakash Byju's

Step-By-Step Guide to Find Atomic Number From Atomic Structure

All elements in the Modern Periodic Table have their own atomic numbers and atomic masses.

Let us see what they are and how to calculate them:

Atomic Number

It is determined by the total number of protons in the nucleus of an atom in an element. It is represented by the letter ‘Z’.

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To find the atomic number of an element, you need to take a copy of the periodic table and search for the chemical symbol of that element.

For example, if you are finding the atomic number of Titanium, it will be represented as Ti in the periodic table.

Along with its chemical symbol, each element has some whole numbers written in the top corner, they are atomic numbers.

Suppose if the numbers are in decimals, then they are probably the atomic mass of the elements. They are rounded to the nearest whole number.

It is a structure of an atom that contains a nucleus in the centre around which protons and electrons are present.

Atomic Structure

For example, see the image below

You can see that the protons and neutrons of atoms are surrounded by electrons belonging to the same atom.

So to find the atomic structure of an atom, you need to find the number of protons, neutrons and electrons. Learn this with an example given next.

Atomic structure of silver

Take a periodic table that shows both the atomic number and mass number(atomic weight) of each element.

 Since the number of protons and electrons are equal, Ag has 47 protons and 47 electrons. Number of neutrons = mass number - atomic number = 108 - 47 = 61 (107.868 is rounded to 108)

So after finding number of protons, neutrons and electrons, we can visualise the atomic structure of silver (Ag):

Isn’t it amazing to use these methods and find atomic number and atomic structure of elements? Share these with your friends.