Answer is: it is not possible, because orbital (azimunthal) quantum number cannot be 2.
The principal quantum number (n) is one of four quantum numbers which are assigned to each electron in an atom to describe that electron's state.
For principal quantum number n=2:
1) azimuthal quantum number (l) can be l = 0...n-1:
l = 0, 1.
The azimuthal quantum number determines its orbital angular momentum and describes the shape of the orbital.
2) magnetic quantum number (ml) can be ml = -l...+l.
ml = -1, 0, +1.
Magnetic quantum number specify orientation of electrons in magnetic field and number of electron states (orbitals) in subshells.
3) the spin quantum number (ms), is the spin of the electron.
ms = +1/2, -1/2.
Answer:
a)

b)
hours
Explanation:
Given
Surface Area (S) of 250 grams of powder sample
square meter.
square centimeter
grams/minute
mg per second
gram per cubic meter
mg/ml
a)


cm /sec
b) Time taken
Time taken to sink

Time in hours
hours
Join or be joined securely to something else, typically by means of an adhesive substance, heat, or pressure.