Multiple Choice
The element X has three naturally occurring isotopes.The isotopic masses (amu) and % abundances of the isotopes are given in the table below.The average atomic mass of the element is ________ amu. 
A) 161.75
B) 162.03
C) 162.35
D) 163.15
E) 33.33
Correct Answer:

Verified
Correct Answer:
Verified
Q157: Which of the following species contains 18
Q158: An atom of <sup>118</sup>Xe contains _ neutrons.<br>A)54<br>B)172<br>C)64<br>D)110<br>E)118
Q159: Fluorine forms an ion with a charge
Q160: What is the formula for perchloric acid?<br>A)HClO<br>B)HClO<sub>3</sub><br>C)HClO<sub>4</sub><br>D)HClO<sub>2</sub><br>E)HCl
Q161: How many protons are there in one
Q163: An atom of 14<sub>C contains _ electrons.</sub><br>A)14<br>B)20<br>C)8<br>D)10<br>E)6
Q164: In the symbol below,X = _. <img
Q165: Aluminum forms an ion with a charge
Q166: How many neutrons are there in one
Q167: Different isotopes of a particular element contain