Trends in the Carbon Family

The video tutorial covers the atomic and physical properties of the carbon family, focusing on trends in atomic radius, ionization enthalpy, oxidation states, valency, catenation, and electronegativity. It explains how these properties change down the group due to factors like nuclear charge and the presence of d and f orbitals. The tutorial also highlights the physical characteristics of carbon family elements, including their classification as non-metals, metalloids, and metals.

What is the electronic configuration of the carbon family?

• ns1 np2

• ns2 np3

• ns2 np2

• ns2 np1

How does the atomic radius change from carbon to silicon?

• Increases slightly

• Increases considerably

• Remains the same

• Decreases

Why is there only a slight increase in atomic size from silicon to lead?

• Due to poor shielding by d and f orbitals

• Due to high electronegativity

• Due to strong nuclear charge

• Due to absence of inner core electrons

Compared to group 13, why does the carbon family have higher ionization energy?

• Presence of d and f orbitals

• Lower nuclear charge

• Higher nuclear charge and smaller size

• Larger atomic size

What trend is observed in ionization energy from silicon to germanium?

• Remains constant

• Significant decrease

• Slight decrease

• Significant increase

What oxidation state is common for heavier elements like germanium, tin, and lead?

• +3

• +2

• +4

• +1

What is catenation?

• Formation of metallic bonds

• Linking through covalent bonds

• Linking through hydrogen bonds

• Formation of ionic bonds

How does catenation change down the carbon group?

• Increases

• Fluctuates

• Remains constant

• Decreases

How does electronegativity of the carbon family compare to the boron family?

• Equally electronegative

• More electronegative

• Not comparable

• Less electronegative

Which elements in the carbon family are non-metals?

• Germanium and tin

• Lead and germanium

• Carbon and silicon

• Tin and lead