Atoms are composed of three fundamental particles, electrons, protons and neutrons. Protons and neutrons are placed at the center of the atom that is called as a nucleus. Electrons are placed around the nucleus in the shell which is further divided in sub-shells and orbitals. The outermost shell of an atom is called as valence …
The idea of the matter was first given by Greek philosophers Leucippus and Democritus. The idea was that matter was made of building blocks or particles. They suggested that matter is composed of atoms that are separated by empty spaces. They also proposed that the apparent changes in matter are caused by changes in the way these atoms are grouped …
Doppler Effect Equation: The Austrian Physicist Christian Doppler formulated the Doppler effect in 1842. According to him, Doppler effect is nothing but the change in wave frequency when an observer is moving with respect to the source. Let us consider an example, if a stationary observer on a platform listen to the sound of the …
The main constituents of air are nitrogen and oxygen. It also contains carbon dioxide and water vapour in small amounts. Inert gases and ozone are also present in trace amounts in air. Apart from these gases, air also contains some impurities, like sulphur dioxide, hydrogen sulphide, nitrogen dioxide, dust particles, etc. Carbon dioxide gas is …
By the end of this article, you should be able to describe What is Soil Pollution, Definition, Sources, Causes, Effect, Control, Prevention of Soil Pollution. Let’s start discussing one by one. What is Soil Pollution- Definition Soil pollution is defined as the decrease in soil fertility because of the addition of some foreign elements. The …
At the end of the article, you will able to Explain Nitrogen Cycle Steps with Diagram, Definition, and Explanation. Let’s start discussing it. What is Nitrogen Cycle – Definition For processes that participate in the cycling of nitrogen through the biosphere constitute the nitrogen cycle. Nitrogen is very much important for the living organisms. Nitrogen forms …
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At the end of the article you will understand and able to describe Carbon Cycle – Definition with examples, Explanation, Steps, Diagram. Let’s start discussing it. What is Carbon Cycle – Definition Carbon is one of the most important elements on earth. All living things are made of carbon. Most of the fuels that humans use …
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At the end of the article, you will able to describe electron affinity trend. Let’s get started. We have learned that when a neutral gaseous atom is to lose an electron, the ionization energy is required. In case the atom is to gain an electron from outside atom or ion to form negative ion (or anion). The …
At the end of the article, you will able to describe – History of the Periodic Table, Parts of the Periodic Table, Properties, and Facts. Let’s start discussing one by one. A shopkeeper dealing in different items say stationary, cosmetics, confectionery, etc. place things of one type at one place. In the library, books of one subject are …
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The article is discussing the variation of atomic radius trend or change of the atomic radius down the group as well as the period along from left to the right. Atomic Radius Trend There are certain physical properties of elements such as melting point, boiling point, density, enthalpy of fusion and vapourisation. Out of Multiple factors, …
