Multiple Choice
Vanadium has two naturally occurring isotopes, 50V with an atomic mass of 49.9472 amu and 51V with an atomic mass of 50.9440. The atomic weight of vanadium is 50.9415. The percent abundances of the vanadium isotopes are __________% 50V and __________% 51V.
A) 0.25, 99.75
B) 99.75, 0.25
C) 49, 51
D) 1.0, 99
E) 99, 1.0
Correct Answer:
Verified
Correct Answer:
Verified
Q57: The correct name for NaHCO<sub>3</sub> is _.<br>A)sodium
Q65: The correct name for SO is _.<br>A)sulfur
Q132: The correct name of the compound Na<sub>3</sub>N
Q142: The correct formula of iron (III)bromide is
Q169: _ and _ reside in the atomic
Q170: What is the molecular formula for 1-hexanol?<br>A)C<sub>6</sub>H<sub>12</sub>OH<br>B)C<sub>6</sub>H<sub>1</sub><sub>3</sub>OH<br>C)C<sub>6</sub>H<sub>1</sub><sub>4</sub>OH<br>D)C<sub>7</sub>H<sub>1</sub><sub>3</sub>OH<br>E)C<sub>7</sub>H<sub>1</sub><sub>4</sub>OH
Q173: 420 pm is the same as _
Q177: Which of the following elements is a
Q178: Which species below is the nitride ion?<br>A)Na<sup>+</sup><br>B)NO<sub>3</sub><sup>-</sup><br>C)NO<sub>2</sub><sup>-</sup><br>D)NH<sub>4</sub><sup>+</sup><br>E)N<sup>3-</sup>
Q195: The correct name for H<sub>2</sub>SO<sub>4 </sub>is _.<br>A)sulfuric