Dalton’s postulate that atom is indivisible tiny, hard solid ball was no more valid with the discovery of nucleus and electrons through cathode ray tubes experiment of J. J. Thompson. Plum pudding model of Thompson was one step ahead that of Dalton’s atomic theory. No doubt that Dalton’s atomic theory was pioneer in the understanding matter in […]
Ever since the ancient times, scientific community has been so curious to know the nature and structure of the smallest particle called atom. Let it be ancient Democritus or modern Bohr, everyone was so dedicated to uncover the true and exact reality of atom. In this article, I’m going to provide explanation of Dalton’s atomic
At certain range of temperature, it is observed that water shows unusual or abnormal characteristics or behaviour compare to other liquids show. In scientific terms, it is called anomalous behaviour of water that I’m going to explain here. Need to understand anomalous behaviour of water Have you ever thought how aquatic plants can and animals
In everyday activities, you might encounter with various things like running motors, moving people, animals, sitting chairs, tables, mobile phone, food you eat etc. All are made up of different substances like plastic, steel, wood, cells etc. In short, matter is instrumental for everything we observe. Understanding the importance, let’s learn more about the states
In the scientific term, matter is classified as pure substances and mixtures. Pure substances are made from similar kinds of particles. While, mixtures have more than one different particles. For clarity, let’s know classification of matter. Universe is made up uncountable substances from air, water, dust, soil, light, and many more. In the language of
Scientists were curious to reveal the mystery about the exact behavior of certain elements. They observed that some elements emitted visible light when they get heated in flame. So, understand the chemical behaviour and structure of an atom in detail, they tried to understand the wave nature of light. What is mean by wave nature
Field of Chemistry is all about of the study of composition of existing substances and synthesis of newer substances. Aufbau’s principle predicts Valency and electron configuration that are responsible factors for formation of newer substances. In this article, I’m going to provide a detailed explanation of Aufbau’s principle. Aufbau’s principle highlights the proper selection of
Austrian physicist Wolfgang Pauli proposed his principle after observing atoms in excited state. It became Pauli’s exclusion principle. He considered the repulsive force between two negatively charged electrons and proposed new model indicating upward and downward spin electrons in boxes. Importance and definition of Pauli’s exclusion principle It has great importance in predicting types of
Periodic property of elements is the Chemical properties of elements depends upon the ground state electron configuration (GSEC) of that elements. So to understand and predict the properties of elements, it is inevitable to understand the (GSEC) of an atom or elements. Understanding ground state Electron configuration GSEC is a systematic distribution of electrons in
If anything causes the given product or object move, accelerate, or slow down is termed as force. Whereas, work is when energy transfer causes an object to displace over a distance. In this post, “Explaining force and work”, I’m going to explain the interrelations between these two scientific terms. Meaning and examples of force Anything