Question

The radius of a cobalt atom is 1.25 Å. What is its radius in meters (m)?

Answer 1

1.25×10⁻¹⁰ meters

Step-by-step explanation:

We can know this, by a rule of three:

1 Â is 1×10⁻¹⁰ meters

1.25 Â is 1.25×10⁻¹⁰ meters