Solution:
An element that is an essential constituent of all organic compounds belongs to Group 14.The modern periodic table classifies the elements into a tabular form in the increasing order of their atomic numbers. The element that is essential for all organic compound is Carbon. Carbon is the only central element in most organic molecules because each carbon atom can make four covalent bonds with other atoms. The atomic number of Carbon is 6; therefore, the Carbon's electron configuration will be 2, 4. It belongs to group 14 of the modern periodic table. Carbon is denoted by the symbol 'C'.
