explain the rutherford model of atom
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The model described the atom as a tiny, dense, positively charged core called a nucleus, in which nearly all the mass is concentrated, around which the light, negative constituents, called electrons, circulate at some distance, much like planets revolving around the Sun.
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The model described the atom as a tiny, dense, positively charged core called a nucleus, in which nearly all the mass is concentrated, around which the light, negative constituents, called electrons, circulate at some distance, much like planets revolving around the Sun.
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RUTHERFORD ATOMIC MODEL OR ALPHA SCATTERING EXPERIMENT
- α−ray is the flow of the 2+ ions
- Alpha ray is bombarded over thin gold foil.
OBSERVATION
- Most of the Alpha particle pàss through the thin gold foil without any deflection.
- Sum of Alpha particle get deflected through less than 90°
- Very few of Alpha Ray pàss through thin gold file with deflection angle more than 90°
- One ray in 15000 rays shows deflection through 180°.
CONCLUSION OF RUTHERFORD MODEL
- Most part of the atom are empty.
- Centre of the atom have highly dense reason which is positively charged reason known as nucleus.
- Total mass of atom is concentrated in nucleus.
- Size of nucleus is very less as compared to size of the atom.
- Volume of atom = 10¹⁵ × Volume Of Nucleous
- Electron revolves around the nucleus in circular path.
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