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In this chapter, you will learn about:
The conceptions of an atom
Electronic configuration
Conceptions of an atom
Plum Pudding model
Negatively charged electrons (plum) surrounded by a volume of positive charge (pudding)
Rutherford model
Concept of negatively charged electrons surrounded nucleus
Bohr model of atom
Concept of nucleus containing proton and neutron
Cloud model
Concept of large number of electrons surrounding nucleus
Orbital model
Concept of electrons orbiting nucleus
Electronic configuration
Electrons have electron shells
These are labelled by principal quantum numbers
3d atomic orbitals exhibit degeneracy
The higher the pq no, the further away the electrons exist away from nucleus
s-orbitals are spherical
p-orbitals are dumbell shaped
3ps
4ps
4dp
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