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Thomson, Rutherford and Bohr model of atom.
Thomson's atomic model proposed that an atom is uniform sphere of positive…
science
Study Materials & Resources
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Structure of Human Ear and Hearing Aid
A hearing aid is a battery-operated, an electronic device that receives sound…
Sound: Reverberation, and Range of Hearing
Reverberation is the persistence of a sound after a sound is produced.…
Speed of sound in different media
The speed of the sound in a medium is affected by the…
Sound: Production and propagation
The basic way for the production of Sound is “vibration”. When an…
Molecular Mass and Mole Concept
The summation of the atomic masses of all the atoms in a…
Chemical Formula of compounds and rules for writing
The symbolic representation of composition is termed as the chemical formula of…
Molecules and ions
A molecule is, in general, a group of two or more atoms…
Laws Of Chemical Combination And Dalton’s Atomic Theory
Lavoisier and Joseph L. Proust proposed two laws of chemical combination. during…
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The five kingdom Classification, characteristic features and differences.
Robert Whittaker grouped organisms into