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Author Question: An isotope of oxygen has 8 protons, 10 neutrons, and 8 electrons. What is the atomic mass of this ... (Read 306 times)

asan beg

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on: Jul 16, 2018
An isotope of oxygen has 8 protons, 10 neutrons, and 8 electrons. What is the atomic mass of this isotope?
 
  A) 16
  B) 18
  C) 21
  D) 26

Question 2

________ are groups of the same kinds of atoms that cannot be broken down into other substances by ordinary chemical means.
 
  A) Molecules
  B) Electrons
  C) Elements
  D) Minerals


dpost18

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: C


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