Respuesta :

quasarJose

Answer:

197.5pm

Explanation:

Given parameters:

Diameter of the atom  = 395pm

Unknown:

Radius of the atom  =?

Solution:

Radius is the half of diameter;

  Radius = [tex]\frac{diameter}{2}[/tex]

 Radius  = [tex]\frac{395}{2}[/tex]   = 197.5pm

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