D-block (for diffuse) elements consist of the transition metals (group 3-12 on the periodic table) in which the outermost electron shell is the D orbital. D-block elements form at least one stable ion with an incompletely filled electron subshell.
... grammar is Paanini's c. 500 BC Astaadhyaayii[?] ("8 Chapter Grammar"). A form of Sanskrit called Epic Sanskrit is seen in the Mahaabhaarata and other epics. Vernacular ...