Multiple Choice
There are ________ protons, ________ electrons, and ________ neutrons in an atom of 
Xe.
A) 129, 129, 129
B) 129, 129, 75
C) 54, 75, 129
D) 54, 54, 75
E) 54, 54, 129
Correct Answer:
Verified
Correct Answer:
Verified
Q49: Isotopes are atoms that have the same
Q76: Horizontal rows of the periodic table are
Q110: The charge on the copper ion in
Q122: What is the molecular formula for nonane?<br>A)C<sub>9</sub>H<sub>18</sub><br>B)C<sub>9</sub>H<sub>20</sub><br>C)C<sub>10</sub>H<sub>20</sub><br>D)C<sub>10</sub>H<sub>22</sub><br>E)C<sub>10</sub>H<sub>24</sub>
Q123: An atom of <sup>14</sup>C contains _ electrons.<br>A)14<br>B)20<br>C)8<br>D)10<br>E)6
Q124: In the periodic table, the elements are
Q125: The formula of a salt is XCl<sub>2</sub>.
Q147: Which type of formula provides the most
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
Q193: An empirical formula always indicates _.<br>A)which atoms