Evolution of the modern atomic model, Chemistry

Assignment Help:

Q. Evolution of the Modern Atomic Model?

Ans: The atomic models of Dalton, Thomson, Rutherford, and Bohr eventually evolved into the current-day Quantum Mechanical model of the atom.

Bohr's atomic model is important because it laid the foundation for our understanding of atomic structure.

Bohr's model proposed that electrons orbit the nucleus in fixed circular paths. Although Bohr's atomic model was successful for the hydrogen atom, it was not successful for heavier atoms that had more than one electron. For example, when Bohr's theory was used to explain the arrangement of the electrons in the helium atom, there was a 5% error, compared to the 0.1% error when his theory was applied to the hydrogen atom. Although scientists tried, they could not adapt Bohr's theory to work with atoms heavier than hydrogen. Scientists concluded that electrons did not orbit the nucleus in the well-defined paths that Bohr predicted.


Related Discussions:- Evolution of the modern atomic model

Quantum number specifiying location of an electron, The quantum number whic...

The quantum number which specifies the location of an electron as well as energy is : (1) Principal quantum number (2) Azimuthal quantum number (3) Spin quantum number

Edible colours - chemicals in food, Edible colours - Chemicals in food ...

Edible colours - Chemicals in food Edible colours employed for food are mainly dyes. The make use of food dyes is specifically wide spread. They are utilized to colour everythi

Dyes - chemistry in action, Dyes Dye is a synthetic and natural colouri...

Dyes Dye is a synthetic and natural colouring matter that is employed in solution to stain materials particularly fabrics. All the coloured substances are not dyes. A coloured

Titration , Titration introductions,Objective,Literature,Method ,Discussion...

Titration introductions,Objective,Literature,Method ,Discussion ,Conclusion and References.

What are the physical properties of solids?, Q. What are the physical prope...

Q. What are the physical properties of solids? Ans. Most solids eventually melt when heated. This is because the particles gain enough energy to exceed the attractive for

Determine discharge coefficient, The determination of k is not a strait for...

The determination of k is not a strait forward exercise. Model it from first principles using Bernoulli's equation would produce a square root relationship and would probably have

Determine the configuration, The configuration 1s 2 2s 2 2p 5 3s 1   sho...

The configuration 1s 2 2s 2 2p 5 3s 1   shows: (1) Ground state of fluorine atom (2) Excited state of fluorine atom (3) Excited state of neon atom (4) Excited state

What are the types of emulsions, Q. What are the types of emulsions? Em...

Q. What are the types of emulsions? Emulsions can be of three types: 1) Temporary emulsion: These require vigorous shaking just before they are used, as they separate out e

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd