Q. 25.0( 2 Votes )

The atomic number of Al and Cl are 13 and 17 respectively. What will be the number of electrons in Al3 + and Cl?

Answer :

The atomic numbers of aluminium Al and chlorine Cl are given as 13 and 17 respectively. In their present state the number of electrons in Al will be 13 and in Cl will be 17.

Number of electrons in Al3 + will be 10 because it has the valency of 3+ which means it has lost 3 electrons to complete the outermost shell.


Similarly the number of electrons in Cl- will be 18 because its valency is 1- which shows that it has taken 1 electron in its valence shell to complete the orbit.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Electronic Configuration34 mins
Atomic Number46 mins
Quiz | Bohr's-Bury Rule and Valency62 mins
How Radioactivity Works?29 mins
Valency31 mins
What an Atom holds?41 mins
Champ Quiz | On Atom & its Structure37 mins
Discovery of Nucleus33 mins
Champ Quiz | Important Questions of Atom41 mins
Learn How to Write The FormulaFREE Class
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses
RELATED QUESTIONS :