Search Results: 'kothari'


18 results for "kothari"
Learn HTML the Easy way By Pradeep Kothari
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Here's a HTML tutorial for the Beginners. , you have no-doubt heard about HTML – the language behind web pages. This series of tutorials is designed to help you master the art and science... More > of Webpage creation using HTML. You will study the nitty-gritty of HTML, which is the stepping stone to designing complex web-applications. You will learn Hypertext Markup Language (HTML) in all its glory, and detail. These tutorials emphasize on understanding the minute details and building your expertise in HTML.< Less
Periodic trends By Pramod Kothari
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In chemistry, periodic trends are the tendencies of certain elemental characteristics to increase or decrease as one progresses along a row or column of the periodic table of elements.
Chemical Bonding By Pramod Kothari
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A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electrostatic force of attraction between... More > opposite charges, either between electrons and nuclei, or as the result of a dipole attraction. The strength of chemical bonds varies considerably; there are "strong bonds" such as covalent or ionic bonds and "weak bonds" such as dipole–dipole interactions, the London dispersion force and hydrogen bonding.< Less
Chemist & Chemistry By Pramod Kothari
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A chemist is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe the properties they study in terms of quantities,... More > with detail on the level of molecules and their component atoms. Chemists carefully measure substance proportions, reaction rates, and other chemical properties.< Less
Analytical Chemistry By Pramod Kothari
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Analytical chemistry is the study of the separation, identification, and quantification of the chemical components of natural and artificial materials.Qualitative analysis gives an indication of the... More > identity of the chemical species in the sample, and quantitative analysis determines the amount of certain components in the substance. The separation of components is often performed prior to analysis.< Less
F-block elements By Pramod Kothari
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The f-block of the periodic table of the elements consists of those elements whose atoms or ions have valence electrons in f-orbitals. Actual electronic configurations may be slightly different from... More > what is predicted by the Aufbau principle. The elements are also known as inner transition elements, although that term is normally taken to include lutetium and lawrencium as well, which are part of the d-block.< Less
P-block Elements By Pramod Kothari
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Many of the p-block elements have been known since antiquity, and all naturally occurring p-block elements with the exception of astatine were discovered before 1900. Astatine was finally discovered... More > in 1940 by Dale R. Corson, Kenneth Ross MacKenzie, and Emilio Segrè at the University of California, Berkeley. The remaining p-block elements are hypothesized, based on periodic trends, to be elements 113–118, although it is currently unknown if they are actually p-block elements.< Less
D-block elements By Pramod Kothari
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The d-block is the block or portion of the periodic table that contains the element groups 3– 12. These groups correspond to the filling of the atomic d-orbital subshell of the second... More > outermost shell (inside an outermost shell only containing 1 or 2 s-orbital electrons) with electron configurations ranging from s2d1 (Group 3) to s2d10 (Group 12). There are some irregularities in the sequence; for example Cr is s1d5 (not s2d4) and the Group 11 metals are s1d10 (not s2d9), so that the d-subshell is actually complete at Group 11.< Less
Alkaline Earth Metals By Pramod Kothari
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The alkaline earth metals are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). This group lies in the s-block of the periodic table as all alkaline earth... More > metals have their outermost electron in an s-orbital. All the discovered alkaline earth metals occur in nature. Experiments have been conducted to attempt the synthesis of element 120, which is likely to be the next member of the group, but they have all met with failure. However, element 120 may not be an alkaline earth metal due to relativistic effects, which are predicted to have a large influence on the chemical properties of superheavy elements< Less
Alkali Metals By Pramod Kothari
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The alkali metals are a group in the periodic table consisting of the chemical elements lithium (Li), sodium (Na),potassium (K),rubidium (Rb), caesium (Cs), and francium (Fr). This group lies in the... More > s-block of the periodic table as all alkali metals have their outermost electron in an s-orbital. The alkali metals provide the best example of group trends in properties in the periodic table, with elements exhibiting well-characterized homologous behaviour.< Less