Elements Their Atomic, Mass Number,Valency And Electronic Configuratio / Atomic Number - Proton Number : Kindly don't forget to share atomic mass of 30 elements with your friends.
Elements Their Atomic, Mass Number,Valency And Electronic Configuratio / Atomic Number - Proton Number : Kindly don't forget to share atomic mass of 30 elements with your friends. . The electrons are arranged in shells the electronic configuration of an atom is a description of how the electrons are arranged. Elements in the same group had the same 'valency' and similar chemical properties. Explain how electronic configuration determines the valency and in turn the reactivity of the elements. Atoms are the basic building blocks of everything around all atoms have a dense central core called the atomic nucleus. These solutions are part of ncert question 2. Electronic configuration of sodium atom: These elements show variable valency due to less difference in atomic size. These solutions are part of ncert question 2. Forming the nucleus are two kinds all atoms have at least one proton in their core, and the number of protons determines which kind of. Electr
