Multiple Choice
An atom of the isotope 137Ba consists of how many protons (p) , neutrons (n) , and electrons (e)
A) 56 p, 137 n, 56 e
B) 56 p, 81 n, 56 e
C) 137 p, 81 n, 56 e
D) 56 p, 56 n, 56 e
E) 81 p, 56 n, 81 e
Correct Answer:

Verified
Correct Answer:
Verified
Q127: Name the following compound: Al(NO<sub>2</sub>)<sub>2</sub>.<br>A) Aluminum nitrate<br>B)
Q128: What type of compound is NH<sub>4</sub>NO<sub>3</sub><br>A) Ionic<br>B)
Q129: What are the two different ions present
Q130: Almost all the mass of an atom
Q131: Which of the following is an example
Q133: Give the number of protons (p), neutrons
Q134: How many electrons, protons, and neutrons
Q135: The number of neutrons in all atoms
Q136: What is the ion ClO<sub>4</sub><sup>-</sup> named<br>A) chloride
Q137: What are the ions present in the