D orbitals are only available to atoms in rows 3-7. D orbitals only exist for electrons with primary quantum number (n) = 3 or greater. That is, there is no such thing as a 2d orbital. Thus elements such as B, C, O, N, etc do not have available d orbitals, but the atoms immediately below them: Al, Si, S, P, etc. do. Among atoms of a given element, there is no such thing as having d orbitals available or not - that is, all S atoms have d orbitals available. However, depending on the environment surrounding the atom, it may or may not be energetically favorable to use the d orbitals for bonding. But whether or not they\'re used, they\'re always there, and you can always consider them to be available. Solution D orbitals are only available to atoms in rows 3-7. D orbitals only exist for electrons with primary quantum number (n) = 3 or greater. That is, there is no such thing as a 2d orbital. Thus elements such as B, C, O, N, etc do not have available d orbitals, but the atoms immediately below them: Al, Si, S, P, etc. do. Among atoms of a given element, there is no such thing as having d orbitals available or not - that is, all S atoms have d orbitals available. However, depending on the environment surrounding the atom, it may or may not be energetically favorable to use the d orbitals for bonding. But whether or not they\'re used, they\'re always there, and you can always consider them to be available..

1. D orbitals are only available to atoms in rows 3-7. D orbitals only exist for electrons with
primary quantum number (n) = 3 or greater. That is, there is no such thing as a 2d orbital. Thus
elements such as B, C, O, N, etc do not have available d orbitals, but the atoms immediately
below them: Al, Si, S, P, etc. do. Among atoms of a given element, there is no such thing as
having d orbitals available or not - that is, all S atoms have d orbitals available. However,
depending on the environment surrounding the atom, it may or may not be energetically
favorable to use the d orbitals for bonding. But whether or not they're used, they're always
there, and you can always consider them to be available.
Solution
D orbitals are only available to atoms in rows 3-7. D orbitals only exist for electrons with
primary quantum number (n) = 3 or greater. That is, there is no such thing as a 2d orbital. Thus
elements such as B, C, O, N, etc do not have available d orbitals, but the atoms immediately
below them: Al, Si, S, P, etc. do. Among atoms of a given element, there is no such thing as
having d orbitals available or not - that is, all S atoms have d orbitals available. However,
depending on the environment surrounding the atom, it may or may not be energetically
favorable to use the d orbitals for bonding. But whether or not they're used, they're always
there, and you can always consider them to be available.