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Author Question: A moon with a smooth, uncratered surface would imply A) the surface is completely liquid. B) the ... (Read 122 times)

ETearle

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on: Jul 27, 2018
A moon with a smooth, uncratered surface would imply
 
  A) the surface is completely liquid.
  B) the surface is very young.
  C) meteorites have never struck the moon.
  D) the moon lies within the planet's Roche Limit.
  E) a strong magnetic field surrounds the moon.

Question 2

The most common isotope of oxygen has atomic number 8 and atomic mass number 16. Another isotope has two extra neutrons. What are the atomic number and atomic mass number of this isotope?
 
  What will be an ideal response?


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xiaomengxian

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

The atomic number would still be 8 because the number of protons wouldn't change, but the atomic mass number would increase to 18.


ETearle

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Reply #2 on: Jul 27, 2018
Thank you!


xiaomengxian

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Reply #3 on: Jul 27, 2018
Always glad to help...


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