EASY
10th ICSE
IMPORTANT
Earn 100

The group number of an element in periodic table indicates 

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Chapter-Wise 3D Chemistry Videos from Vinod Kumar Self Tutor Chemistry

Electrovalency
01 min 51 sec

Electrovalency

Do you know how chemical bonds are formed? They are formed in order to attain a stable electronic configuration. Let's watch the video to learn about the pro...
Electronic Configuration of Elements
Asking Questions and Defining Problems
06 min 06 sec

Electronic Configuration of Elements

The number of protons in an atom is called its atomic number, represented by ‘Z’, while the sum of its protons and neutrons is called its mass number, given...
Periods in the Modern Periodic Table
05 min 31 sec

Periods in the Modern Periodic Table

The general characteristics of periods are identified by its total number of shells in an atom or period number. The electronic configuration of an element d...