Ionic Bonding

Question 1

What is ionic bonding

Answer 1

When a metal and a non metal react together, the metal atom loses electrons to form a positively charged ion and the non metal gains these electrons to form a negatively charged ion
These oppositely charged ions are strongly attracted to one another by electrostatic forces

Question 2

What can electron transfer be represented by

Answer 2

Dot and cross diagram

Question 3

How does sodium chloride form

Answer 3

The sodium atom gives up its outer electron becoming Na + ion
The chlorine atom gains the electron becoming Cl- ion

Question 4

How is magnesium oxide formed (MgCl2)

Answer 4

The magnesium loses two outer electrons to form Mg2+

The two chlorine atoms pick up one electron each becoming two Cl-

Question 5

How sodium oxide formed (Na2O)

Answer 5

Two sodium atoms lose their single outer electron becoming two Na+ ions
The oxygen atoms picks up the two electrons becoming O2- ion