Short Answer Type
Long Answer TypeShort Answer TypeLong Answer TypeDiscuss the characteristics of group 14 elements in terms of:
(i) Atomic radius
(ii) Ionisation enthalpy
(iii) Electropositive character
(iv) Melting and boiling points.
Short Answer TypeExplain why is there a phenomenal decrease in ionisation enthalpy from carbon to silicion.
Discuss the characteristics of group 14 elements in terms of:
(i) Oxidation states
(ii) Metallic character.
(i) Oxidation states: All the elements of group 14 elements show +4 oxidation state. However as we go down the group, the stability of +4 oxidation state decreases while that of +2 oxidation state increases. This is due to the inert pair effect.
(ii) Metallic character:The elements of group 14 are less metallic than the elements of group 13. This is due to the less electropositive character of group 14 elements. Carbon and silicon are non-metallic, germanium is a metalloid while tin and lead are metallic. Thus the metallic character increases down the group.
Switch
