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Just one. To become stable, it needs eight electrons; a full outer shell.

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Q: In chlorine the outer energy level contains 7 electrons To attain stable state the chlorine atom needs to gain how many electrons?
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Related questions

How many electrons in the third energy level of chlorine?

Chlorine has 7 valence electrons.


What is the electronic arrangement of chlorine?

The electronic arrangement of chlorine is 2, 8, 7. This means that chlorine has 2 electrons in its first energy level, 8 electrons in its second energy level, and 7 electrons in its outermost energy level.


How many electrons in the first energy level of chlorine?

Chlorine is in the 17th period.Elements in the 17th period have 7 electrons in the outermost energy level. So chlorine has 7 electrons in the 3rd energy level.Chlorine has 17 electrons. It's electron configuration is [Ne] 3s2 3p5. Therefore it has 7 electrons in its third (outermost) energy level.


How many electrons does chlorine have in its highest energy level?

The electronic configuration of chlorine is 2,8,7 So there are 7 electrons in the valence shell (or highest energy level).


What is the highest occupied energy level for chlorine?

The 3rd energy level is the highest occupied energy level for chlorine with seven electrons.


How many electrons does chlorine have in the highest occupied energy level?

There are 3 energy levels in chlorine. Look at the shell notation: 2-8-7. So there are 8 electrons in the highest energy level.


How many electrons does chlorine have in the third energy level?

7


How many energy levels are in a chlorine atom?

Answer3 energy levels17 protons and electrons


How many energy levels does chlorine have?

Chlorine has three electron shells with 2, 8, 7 electrons.


The second energy level contains how many electrons when it is full?

The second energy level contains eight valance electrons when it's full.


How many electrons are in the outermost energy level of a chlorine ion in table salt?

There are eight electrons in the outermost energy level of a chloride ion.


What is the highest energy level in which you would find electrons in a chlorine atom?

3p