(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?| Unit3 Chemistry NCERT solution-Grade-10

Q. (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?

 

Answer:-

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

unit3-chem-x-q8a

(ii)

unit3-chem-x-q8b

unit3-chem-x-q8c

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