Basics of Chemistry > News > Class 11
What is de Broglie equation and how to explain it

de Broglie gave the concept of dual nature of matter. Matter has particle nature as well as wave nature. Here, we will study the Broglie equation and its relationship. de Broglie concept of dual nature Significance of de Broglie equation It is applicable to all material particles. But it is significant for microscopic particles only. […]

What is electromagnetic wave theory and how to explain it

Here we will discuss about electromagnetic wave theory. And what are the important characteristics of wave nature. What is electromagnetic wave theory Characteristics of waves Electromagnetic Wave Spectrum It is the arrangement of the electromagnetic radiations in order of increasing wavelength. Cosmic rays < Gamma rays < X-rays < UV < Visible < IR < […]

What are quantum numbers and how to assign value

Quantum numbers is the set of 4 numbers to get the complete information about the electron. Here we will discuss about their significance. What is Quantum number Quantum number gives the complete information of electron. it tells about the location, energy, the type of orbital occupied, shape and orientation of the orbital. Types of Quantum […]

What is Bohr atomic model & how to explain hydrogen spectrum

Here we will discuss about Bohr atomic model. We will also study how to explain the hydrogen spectrum. Bohr atomic model Bohr’s model explained the drawbacks of Rutherford’s model of atom. The important postulates of this model of atom are: 5. Like energy, angular momentum is also quantised. 6. Lowest energy state of the Hydrogen […]

What is Heisenberg’s Uncertainty Principle in atomic structure

Heisenberg’s Uncertainty Principle is applicable for the microscopic particles only. Let’s discuss about the Uncertainty Principle in detail. What is Heisenberg’s Uncertainty Principle It is impossible to measure simultaneously the position and momentum of a small microscopic particle with absolute accuracy. if one of them is measured with absolute accuracy, the other becomes less accurate. […]

What is Rutherford’s scattering experiment in atomic structure

Rutherford scattering experiment involves the bombardment of thin foils with alpha particles. This results in the discovery of nucleus. Here, we will discuss about Rutherfords scattering experiment in structure of atom. What is Rutherford’s scattering experiment What are the observations of Rutherford’s scattering experiment What are the conclusions of Rutherford’s scattering experiment Structure of Rutherford’s […]

How to find the empirical formula and molecular formula

Empirical formula is the simplest whole number ratio of various elements in the compound. Molecular formula is the actual number of atoms present in the compound. Here, we will discuss more about the E.F. and molecular formula of the compound. What is empirical formula E.F. is the simple whole number ratio of elements in the […]

What is the law of chemical combination

What are the different laws of chemical combination ? We study the different aspects of chemical reactions in the various chemical combinations. Law of conservation of mass : Laws of chemical combination In all physical and chemical changes, total mass of the system remains constant. It means matter is neither created nor destroyed. Physical changes […]

What is significant figure and how to calculate it

Significant figures is the total number of digits in a number . Here, are some rules for finding the value of significant figures. Rules for determining significant figures in addition and subtraction Here is the rule of finding the result of addition and subtraction. It should have the same number of decimal places as the […]