Name: Schrodinger's Wave Equation
Uploaded: 2019-07-19
Duration: 6 min 28 s
Description: The Schrödinger equation is an equation on linear partial differential that describes the wave function in quantum mechanics. It helps to understand the stru...

Question

What was the drawback of Rutherford's model of atom? Describe Bohr's model of atom and explain its usefulness over Rutherford's model.

Accepted Answer

According to maxwell charge particles in motion must emit energy and electron is also a charged particle and revolving around the nucleus at very high speeds so it must also emit energy and if it does so it cannot maintain its radius of its path and it will decrease and electron will ultimately fall into the nucleus following spiral path and thereby making the atom unstable.

It says nothing about the electronic structure of atoms i.e how the electrons are distributed around the nucleus and what the energy of the electrons.

Postulates of Bohr's Atomic model

Electrons revolve around the nucleus in a fixed circular path termed “orbits” or “shells” or “energy level.”

The orbits are termed as “stationary orbit.”

Every circular orbit will have a certain amount of fixed energy and these circular orbits were termed orbital shells. The electrons will not radiate energy as long as they continue to revolve around the nucleus in the fixed orbital shells.

The different energy levels are denoted by integers such as n=1 or n=2 or n=3 and so on. These are called as quantum numbers. The range of quantum number may vary and begin from the lowest energy level (nucleus side n=1) to highest energy level.

The different energy levels or orbits are represented in two ways such as 1, 2, 3, 4… or K, L, M, N….. shells. The lowest energy level of the electron is called the ground state.

The change in energy occurs when the electrons jump from one energy level to other. In an atom, the electrons move from lower to higher energy level by acquiring the required energy. However, when an electron loses energy it moves from higher to lower energy level.

What was the drawback of Rutherford's model of atom? Describe Bohr's model of atom and explain its usefulness over Rutherford's model.

Important Questions on Structure of Atom

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