Barium valence electrons

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Barium has 2 valence electrons.

Methods

We can write the valence electrons of barium using two different methods:

#1 Using periodic table
#2 Using electron configuration

Let’s break down each method in detail.

Using periodic table

Get the periodic table having the chemical elements marked on it as mentioned above.

Now mark the location of barium on the periodic table.

Next, mark the group number of barium on the periodic table.

The valence electrons of each main-group element can be determined by the column in which it is located.

(i.e., all group 1 elements have 1 valence electron, all group 2 elements have 2 valence electrons, skip the transition metals… then, all group 13 elements have 3 valence electrons, all group 14 elements have 4 valence electrons, and so on up to group 18 elements)

Since barium is in group 2, it has 2 valence electrons.

Using electron configuration

• First, write electron configuration of barium

The electron configuration of barium is [Xe] 6s².

Learn how to find: Barium electron configuration

• Second, find highest energy level in electron configuration

In the above electron configuration, the highest energy level (6) is marked with green color.

• Finally, count electrons of that energy level

The 6^th energy level contains 6s subshell and it has 2 electrons. So barium has a total of 2 valence electrons.

Next: Francium valence electrons

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Related

• Periodic table

More topics

• Barium
• Barium Bohr model
• Barium electron configuration
• Barium orbital diagram
• Barium protons neutrons electrons

External links

• https://homework.study.com/explanation/how-many-valence-electrons-does-barium-have.html
• https://socratic.org/questions/how-many-valence-electrons-would-be-found-in-an-atom-of-ba
• https://materials.gelsonluz.com/2019/08/valence-electrons-in-barium-ba-facts.html
• https://brainly.com/question/6778376