Question

If the radius of atom is 4 × 10^-3 nm (Nano meter), so its diameter is: *

8 × 10^-12 m
8 × 10^-3 µm
8 × 10^-6 km
8 × 10^-9 cm ​

Answer 1

8 x 10^-12

Step-by-step explanation:

Radius = 4 x 10^-3nm = 4 x 10^-12 m

by the formula,

diameter = 2 x radius

diameter = 2 x (4 x 10^-12)

diameter = 8 x 10^-12 m