How to Find the Valence Electrons for Oxygen Difluoride?
The total number of electrons in the last orbit of an element is called the valence electrons of that element. Two or more elements combine to form compounds.
The valence electrons of a compound are the sum of the total valence electrons of each element in that compound. Oxygen difluoride consists of two basic atoms. One is an oxygen atom and the other is a fluorine atom.
The valence electrons of oxygen difluoride are the sum of the total valence electrons of oxygen and fluorine in the compound OF2. The oxygen difluoride compound has a total of twenty electrons in the last orbits of oxygen and fluorine.
Hence, the total number of valence electrons in oxygen difluoride is twenty. To determine the valence electrons of a compound, the number of valence electrons in each element of the compound must be known.
This article discusses in detail how to determine the valence electrons of oxygen difluoride very easily. Hopefully, after reading this article you will know more about this topic.
How to easily determine the number of valence electrons of OF2?
The symbol form of oxygen difluoride is OF2. To determine the valence electrons of OF2, it is first necessary to know the valence electrons of the fluorine and oxygen atoms.
To determine the valence electrons of oxygen difluoride we have to follow two steps. It is shown below:
Step 1: Determine the valence electrons of oxygen and fluorine atoms
The atomic number of oxygen is 8. So its total number of electrons is eight. The electron configuration of oxygen shows that it has six electrons in its last orbit.
We already know that the electrons in the last orbit of an element are the valence electrons of that element. Therefore, the valence electrons of oxygen are six.
On the other hand, the atomic number of fluorine is 9. So its total number of electrons is nine. The electron configuration of fluorine shows that it has seven electrons in its last orbit. Therefore, the valence electrons of fluorine are seven.
Step 2: Determine the total number of valence electrons in the oxygen difluoride compound
Oxygen difluoride is a compound. It is composed of one oxygen atom and two fluorine atoms.
Therefore, adding the valence electrons of one oxygen atom and the valence electrons of two fluorine atoms can easily determine the valence electrons of oxygen difluoride.
Mathematical Analysis:
OF2
= 6 + (7×2)
= 20
Oxygen (O) | Fluorine (F) | Oxygen difluoride (OF2) |
6 | 7 | 20 |
From the above mathematical analysis, we can see that the total number of electrons in the outermost orbit of oxygen difluoride is twenty. Therefore, the valence electrons of oxygen difluoride are twenty.
Why do you need to know the valence electrons of an element?
In addition to knowing the number of electrons of an element, it is also necessary to know the number of valence electrons of that element. The number of valence electrons of an element carries important properties of that element.
Many important properties of elements and compounds can be determined by valence electrons. Some important features are mentioned below:
- Determining the element’s position in the periodic table
- Determining the number of groups of elements in the periodic table
- Determining Valency
- Lewis dot formation
- Determination of the molecular structure of the compound
- Determination of bond pairs and non-pair electrons of compounds
Valence electrons are related to the characteristics of a compound. So we need to know the valence electrons of all the elements to determine the properties of compounds.