Q. 163.7( 3 Votes )

(a) What is an octet? How do elements reach an octet?

(b) Make a schematic atomic structure of Magnesium of Phosphorus.

(Given: number of protons of Magnesium = 12, Phosphorus = 15).

Answer :

a. Octet means the presence of 8 electrons in the outermost shell of an atom which means atom is stable and has the electron arrangement of inert gas. Every atom wants to attain stability so they combine with one another and by gaining or losing or mutually sharing electrons they reach the octet state.


b. Structure of magnesium whose atomic number is 12- 2, 8, 2



Structure of phosphorus whose atomic number is 15- 2, 8, 5



Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Smart Revision | Rutherford's ExperimentSmart Revision | Rutherford's ExperimentSmart Revision | Rutherford's Experiment43 mins
ValencyValencyValency31 mins
Smart Revision | Imp. Terms to RememberSmart Revision | Imp. Terms to RememberSmart Revision | Imp. Terms to Remember55 mins
Smart Revision | Let's Revise An AtomSmart Revision | Let's Revise An AtomSmart Revision | Let's Revise An Atom34 mins
Electronic ConfigurationElectronic ConfigurationElectronic Configuration34 mins
Atomic NumberAtomic NumberAtomic Number46 mins
Quiz | Bohr's-Bury Rule and ValencyQuiz | Bohr's-Bury Rule and ValencyQuiz | Bohr's-Bury Rule and Valency62 mins
How Radioactivity Works?How Radioactivity Works?How Radioactivity Works?29 mins
What an Atom holds?What an Atom holds?What an Atom holds?41 mins
NCERT | Exercise on Structure of AtomNCERT | Exercise on Structure of AtomNCERT | Exercise on Structure of Atom46 mins
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
caricature
view all courses