What is the criteria to decide number of electrons in a shell?

What is the criteria to decide a best fuel ?

What is the maximum number of electrons in any shell, lf 'n' ls the principal quantum number?

What is the maximum number of electrons in a sub-shell (s, p, d, f) ? Where Z = 0, I , 2, 3 ......?

The number of electrons in M shell is equal to the number of electrons in L shell for an element. Write the name, electronic configuration of that element and also write the values of four quantum numbers for the last electron.

If n = 3, mention the orbitals present in the shell and write maximum number of electrons in the shell.

Write the formula to find the maximum number of electrons present in a shell.

Is there any rule to find the maximum number of electrons in any shell ?

What is maximum number of electrons present in M-shell?

The following species has the lowest number of electrons in the valence shell

In an atom the number electrons in M-shell is equal to the number of electrons in the K and L Shell. Answer the following questions. What is the atomic number of element?