Which one of the following is not a valid value for the magnetic quantum number (ml) of an electron in a 5d subshell?

a. 0
b. -1
c. 3
d. 2

The answer to your question is: 3

Explanation:

Data

Magnetic Quantum number in 5d subshell

Magnetic quantum number d has 5 possible values, these could be:

                                       -2, -1 , 0, 1 , 2

d has 5 possible values because in this number could be located 10 electrons but they are pair up, so, there are only 5 possible values.

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.