Question

Which of the following orbitals does not have the angular node?

• A. p${}_x$ - orbital
• B. d${}_z^2$-orbital
• C. p$-y$-orbital
• D. 1s-orbital

Answer 1

The correct option is D 1s-orbital

s orbitals are independent of the angular wave function. Thus, they do not have any angular node. They have an only spherical node.

The number of spherical nodes in s orbitals is given by (n - 1), where n is the principal quantum number.

so, $1s$ don't have any spherical node.

Hence, the correct option is $\text{D}$