# How many radial nodes does a 3s orbital have?

Category:
science
physics

The number of

**nodes**is related to the principal quantum number, n. The ns**orbital has**(n-1)**radial nodes**, so the**3s**-**orbital has**(3-1) = 2**nodes**, as shown in the above plot.

Similarly one may ask, how many radial nodes are present in 3s orbital?

Three radial nodes

Regarding this, how many nodes does each orbital have?

two

**To solve for the number of radial nodes, the following simple equation can be used.**

- Radial Nodes = n - 1 - ℓ The 'n' accounts for the total amount of nodes present.
- Total Nodes=n-1. From knowing the total nodes we can find the number of radial nodes by using.
- Radial Nodes=n-l-1.