Bonding

Question 1

What is ionic bonding ?

Answer 1

It is the electrostatic attraction between oppositely charged ions former by electron transfer

Question 2

What is a covalent bond?

Answer 2

It is a share pair of electrons between non metals

Question 3

What is dative covalent bonding ?

Answer 3

A dative covalent bond forms when the shared pair of electrons in the covalent bond come from only one of the bonding atoms.

Question 4

What is a dative covalent bond also known as?

Answer 4

Coordinate bond

Question 5

What is metallic bonding ?

Answer 5

It is the electrostatic force of attraction between the positive metal and the delocalised electrons

Question 6

Factors that affect the strength of metallic bonding :

Answer 6

• number of protons/strength of nuclear charge
• number of delocalised electrons per atom
• size of ion(smaller ion=stronger bond)

Question 7

What is the shape and angel of a molecule with 2 bonding pairs and no lone pairs called?

Answer 7

Bond angle=180 degrees
shape=linear
Examples-CO2,CS2,BeF2

Question 8

What is the shape and angel of a molecule with 3 bonding pairs and no lone pairs called?

Answer 8

Bond angle=120 degrees
Shape=trigonometry planar
Examples=BF3,AlCl3,SO3,NO3