chapter 4 - chemical bonding

Question 1

what is ionic bond ?

Answer 1

strong electrostatic force of attraction between oppositely charged ions

Question 2

what is ionic bonding ?

Answer 2

process involving the transfer of electrons from the metal atom to the non-metal atom

Question 3

what is ionic compound ?

Answer 3

made up of a metal ion , and a non-metal ion

Question 4

what is covalent bond ?

Answer 4

a bond formed from sharing of electrons

Question 5

what is covalent bonding ?

Answer 5

process involving the sharing of electrons between non-metal atoms

Question 6

what is covalent compound ?

Answer 6

made up of at least two non-metal atoms

Question 7

explain why ionic compounds have high melting and boiling points

Answer 7

ionic compounds have strong electrostatic force of attraction between oppositely charged ion, heat energy is needed to overcome the strong forces of attraction

Question 8

explain why ionic compounds are not able to conduct electricity in the solid state

Answer 8

there are no free mobile ions in the solid state as ions are held strongly in their fixed position by strong electrostatic forces of attraction.

Question 9

explain why ionic compounds are able to conduct electricity in the aqueous and molten state

Answer 9

the electrostatic forces of attraction between the ions have been overcomed