How many electrons in an atom can have the following designations?

Question

5d_{z^2: ______ (electrons)}

1d: _{______ (electrons)}

5d: _{______ (electrons)}

7p: _{______ (electrons)}

6d: _{______ (electrons)}

n=3: _{______ (electrons)}

Answer 1

The d subshell can have 10 electrons, 2 in each of the 5 d orbitals.

5d_z2 = 2 electrons

1d = 0 electrons because n = 1, no d orbitals

5 d = 10 electrons

6 d = 10 electrons

The p subshell can have 6 electrons, 2 in each of the 3 p orbitals

7p = 6 electrons

For n = 3, we have 3s² 3p⁶ 3d¹⁰ = 18 electrons