Question

If an atom has a diameter of 395 pm,
what is its radius?

Answer 1

197.5pm

Step-by-step explanation:

Given parameters:

Diameter of the atom = 395pm

Unknown:

Radius of the atom =?

Solution:

Radius is the half of diameter;

Radius =
`(diameter)/(2)`

Radius =
`(395)/(2)` = 197.5pm