The diameter of an aluminum atom is approximately 1.2 x 10-8 cm. To find the radius, we divide the diameter by 2.
First, let’s convert the diameter from centimeters to meters. There are 100 centimeters in a meter, so:
1.2 x 10-8 cm = 1.2 x 10-8 / 100 m = 1.2 x 10-10 m
Now, we can find the radius:
Radius = Diameter / 2 = (1.2 x 10-10 m) / 2 = 6.0 x 10-11 m
Therefore, the radius of an aluminum atom is approximately 6.0 x 10-11 meters.