The 49th element of the periodic table is indium. The element of group-13 is indium and its symbol is ‘In’. Indium forms bonds through its valence electrons.
This article discusses in detail how to easily calculate the number of valence electrons in indium. Hopefully, after reading this article you will know in detail about this.
What are the valence electrons of indium?
The fourth element in group-13 is indium. The valence electrons are the total number of electrons in the last orbit(shell).
The total number of electrons in the last shell after the electron configuration of indium is called the valence electrons of indium.
The valence electrons determine the properties of the element and participate in the formation of bonds.
How do you calculate the number of valence electrons in an indium atom?
The valence electrons have to be determined by following a few steps. The electron configuration is one of them. It is not possible to determine the valence electron without electron configuration.
Knowing the electron configuration in the right way, it is very easy to determine the valence electrons of all the elements.
However, valence electrons can be easily identified by arranging electrons according to the Bohr principle. Now we will learn how to determine the valence electrons of indium.
Step-1: Determining the total number of electrons in indium
1st we need to know the total number of electrons in the indium atom. To know the number of electrons, you need to know the number of protons in indium.
And to know the number of protons, you need to know the atomic number of the indium element. To know the atomic number we need to take the help of a periodic table.
It is necessary to know the atomic number of indium elements from the periodic table. The atomic number is the number of protons. Electrons equal to protons are located outside the nucleus.
That is, we can finally say that there are electrons equal to the atomic number in the indium atom. From the periodic table, we see that the atomic number of indium is 49. That is, the indium atom has a total of forty-nine electrons.
Step-2: Need to do electron configuration of indium
Step-2 is very important. In this step, the electrons of indium have to be arranged. We know that indium atoms have a total of forty-nine electrons.
The electron configuration shows that there are two electrons in the K shell, eight in the L shell, eighteen in the M shell, and three in the N shell.
That is, the first shell of indium has two electrons, the second shell has eight electrons, the 3rd and 4th shell has eighteen electrons and the 5th shell has three electrons. The number of electrons per shell of indium is 2, 8, 18, 18, 3.
Step-3: Determine the valence shell and calculate the total electrons
The third step is to diagnose the valence shell. The last shell after the electron configuration is called the valence shell. The total number of electrons in a valence shell is called valence electrons.
The electron configuration shows that the last shell of indium has three electrons. Therefore, the valence electrons of indium are three.