Molecular Polarity In chemical bonds, polarity refers to an uneven distribution of electron pairs between the two bonded atoms—in this […]
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Molecular shape
Molecular Shape While Lewis dot structures can tell us how the atoms in molecules are bonded to each other, they […]
Properties of Giant Covalent Structures Very high melting points – Substances with giant covalent structures have very high melting points, […]
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Polar and non-polar molecules
Polar and non-polar molecules Chemical bonding is the result of either an atom sharing one or more outer orbit electrons […]
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Uses of Radioactivity
Radioactivity tracers are commonly used in the medical field and also in the study of plants and animals. Radiation is […]
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Detection of Radiation
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Introduction to Radioactivity
Antoine Henri Becquerel, a French scientist, 1896, was conducting an experiment which started with the exposure of a uranium-bearing crystal […]
Nuclear Reactions Rutherford in 1919 transmitted nitrogen isotope into an oxygen isotope. The nitrogen was subjected to the action of […]
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Circular Motion
Meaning of Circular Motion Circular motion is the motion of a body around a circle. The simplest form of circular […]
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Capillarity – Cohesion, Adhesion
Definition of Capillarity Capillarity (or capillary action) is the tendency of a liquid to rise or fall in a narrow […]