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barxatty [35]
3 years ago
11

A uranium atom is 238 times as massive as a hydrogen atom. The diameter of a uranium atom is the diameter of a hydrogen atom tim

es about:_________
A. 3.
B. 10.
C. 30.
D. 100.
E. 238.
Chemistry
1 answer:
ser-zykov [4K]3 years ago
8 0

Answer:

A. 3

Explanation:

Given

The atomic radius of Hydrogen rH = 53 pm

The atomic radius of Uranium rU = 156 pm

we apply

rU / rH = 156 pm / 53 pm

⇒  rU / rH = 2.943 ≈ 3

then

rU = 3*rH

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Let's plug in the values in the formula:

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