How many orbitals are present in the d subshell?
- A. Three
- B. Five
- C. Seven
- D. Nine
Explanation
For the d subshell l equals 2, so m runs from minus 2 to plus 2, giving five values and therefore five orbitals. With two electrons per orbital the d subshell holds a maximum of ten electrons, which is exactly the width of the d block in the periodic table. The p subshell has three orbitals and the f subshell has seven.
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