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Learn Intext Exercise 3.3 with Free Lessons & Tips

Download Solutions as PDF

(i) Write the electron-dot structures for sodium, oxygen and magnesium.

(ii) Show the formation of Na2O and MgO by the transfer of electrons.

(iii) What are the ions present in these compounds?

(i) The representation of elements with valence electrons as dots around the elements is referred to as electron-dot structure for elements.

(ii)

(iii) The ions present in Na2O are Na+ and O2− ions and in MgO are Mg2+ and O2− ions.

Comments
Shivam Sharma

Why do ionic compounds have high melting points?

Ionic compounds have strong electrostatic forces of attraction between the ions. Therefore, it requires a lot of energy to overcome these forces. That is why ionic compounds have high melting points.

 

Comments
Shivam Sharma
All Exercises - Chapter 3 - Metals and Non - Metals
Intext Exercise 3.1
Intext Exercise 3.2
Intext Exercise 3.3
Intext Exercise 3.4
Intext Exercise 3.5
NCERT Exercise 3.1
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