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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Category: Chemistry
Free Chemistry online learning lesson notes and videos for Secondary school and High school students. The lesson notes, videos and interactive slideshows are built on curriculum that is designed to meet national and international O’ Level standard for Senior High School or Senior Secondary school students (SS1, SS2, SS3 or SHS1, SH2, SH3) and Grade 9, Grade 10, Grade 11 and Grade 12 students.
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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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Radioactive decay and half life
Radioactive decay is the spontaneous radioactive disintegration of an atomic nucleus, resulting in the release of energy. Some atoms are […]
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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 […]
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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 […]