Answer:
16
Explanation:
The number of orbitals can be calculated when energy level is given.
For example:
n = 4
So in 4th energy level number of orbitals are,
n² = 4² = 16
There are 16 orbitals when n=4
One is 4s three are 4P five is 4d and seven are 4f.
while the number of electrons in energy level can be calculated as
2n²
n is energy level.
For n=4
number of electrons are,
2(4)² = 32
