Chemical Bonding

Question 1

What is ionic bonding

Answer 1

Ionic bondis the electrostatic force of attraction between oppositely-charged ions formed by the complete transfer of electrons from an atom to another atom

Question 2

Which ionic compound has a higher melting point between NaCl and NaBr

Answer 2

NaCl has a higher melting point compared to NaBr because the Br ion is larger than the Cl ion hence there is less electrostatic force as compared to NaCl that has a greater electrostatic force

Question 3

The atomic radius across a group decreases /increases?

Answer 3

Decreases

Question 4

Why does MgCl have a higher melting point than NaCl

Answer 4

It’s because Mg ion has a higher charge and the ion is bigger

Question 5

Describe a covalent bond

Answer 5

Covalent bondis the electrostatic force of attraction that two neighbouring nuclei have for a localised pair of electrons shared between them