Modern Periodic Table|Subshell|Electronic Configuration|Summary

Modern Periodic Law And The Modern Periodic Table|Henry Moseley|Features Of Long Form Of Periodic Table|Electronic Configurations And Types Of Elements|S-Block Elements|OMR

Classification Of Elements-Periodic Table|Concept Of Electronic Configuration |General Representation Of Atom|Electron Filling In Shells Of An Atom|Electronic Configuration|Metals & Non Metals|OMR|Summary

Modern periodic table is based on

Revision|Explanation|Electronic Configuration Of Ions|Periodic Table Of The Elements |General Electronic Configuration |Summary

What is a period in a periodic table ? How does the electronic configuration change in a period with increase in atomic number from left to right ?

Which elements constitute group 14 of periodic table? Write their electronic configuration.