Just one. To become stable, it needs eight electrons; a full outer shell.
A neutral chlorine atom has 17 electrons. In its ground state, the highest occupied energy level for chlorine is the third energy level (n=3), which can hold a maximum of 8 electrons. Therefore, the highest occupied energy level for a neutral chlorine atom contains 7 electrons.
Chlorine has 7 electrons in its third energy level.
The electronic configuration of chlorine is 2,8,7 So there are 7 electrons in the valence shell (or highest energy level).
Atomic StructureNumber of Energy Levels: 3First Energy Level: 2Second Energy Level: 8Third Energy Level: 7
Chlorine has three electron shells with 2, 8, 7 electrons.
A neutral chlorine atom has 17 electrons. In its ground state, the highest occupied energy level for chlorine is the third energy level (n=3), which can hold a maximum of 8 electrons. Therefore, the highest occupied energy level for a neutral chlorine atom contains 7 electrons.
Chlorine has 17 electrons. In the third energy level, there are 7 electrons.
Cl is in the 17 group. It is in the 3rd period. It has 3 energy levels.
Chlorine has 7 electrons in its third energy level.
The electronic configuration of chlorine is 2,8,7 So there are 7 electrons in the valence shell (or highest energy level).
The 3rd energy level is the highest occupied energy level for chlorine with seven electrons.
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.
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.
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.
Answer3 energy levels17 protons and electrons
Chlorine-35 has three full shells of electrons. It has two electrons in the first energy level, eight electrons in the second energy level, and seven electrons in the third energy level, making a total of 17 electrons.
Atomic StructureNumber of Energy Levels: 3First Energy Level: 2Second Energy Level: 8Third Energy Level: 7