Gurmeet Kaur is an Education Industry Professional with 8 years of experience in teaching and creating digital content. She is a Science graduate and has a PG diploma in Computer Applications.

For example, the atomic number of sodium is 11. Every sodium atom has 11 protons and 11 electrons. It has 11 positive charges and 11 negative charges. The mass number of an atom is its total ...

Elements are arranged in the periodic table in order of increasing atomic number ... An atom of sodium has 11 electrons. The first two fill the innermost energy level. The second energy level ...

and the apparently widely different assumptions which have been introduced in various recent attempts to develop a theory of atomic constitution capable of accounting for other physical and ...

img src="https://img.jagranjosh.com/images/2024/June/1262024/rbse-class-11-chemistry.jpg" width="1200" height="675" /> RBSE Class 11 Chemistry Syllabus 2024-25 ...