How to create a fully reflective sphere primitive?

Absolutely brand new to Unity here. I’m working on a project while trying to learn the software.
I want to make a reflective sphere that looks like this:
169539-reflectivesphere.png

Here is the material I’m working on:

Looks like only half of it is reflecting. I’m not sure how to adjust the settings to make it fully reflective.

You can try using a Reflection Probe. Create one and move it inside your sphere.