The third principal level(n=3) of a given atom has 9 orbitals.
what are orbitals?
- orbitals are different energy sub-levels.
- each orbital has a unique and different shape.
- four types of orbital are-s, p, d, f
The 3rd electron shell has 3 subshells - 3s, 3p, 3d
- s subshell only has one orbital.
- p subshell has three orbitals.
- d subshell has five orbitals.
therefore, the total number of orbitals in the third electron shell is:
1+3+5=9 orbitals
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