Structure of Atom. By Prangav Singhal IX-C Roll no. 2. What is an atom?. An atom is like a brick in a building. Like a building is built with bricks, any matter in this world is made up of atoms. Atoms in a crystal bricks in a wall. Charged particles in atom.
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Prangav Singhal IX-C Roll no. 2
Atoms in a crystal bricks in a wall
Thomson proposed that:
Although Thomson’s model explained that atoms are electrically neutral, the results carried out by other scientists could not be explained by this model.
model of an atom
On the basis of his experiment of passing a beam of alpha particles through a thin gold foil, he put forward a model of an atom:
Ruthford’s model of an atom
In order to overcome the objections raised against Ruthford’s model of an Atom, Neils Bohr put forward the following prostulates about the model of an atom:
Bohr’s Model of an Atom
The distribution of electrons into different orbits of an atom was suggested by Bohr and Bury.
The following rules are followed for writing the number of electrons in different energy levels or shells:
Electron shells for sodium(Na) atom(atomic no. 11, with 11 electrons.