Multiple Choice
In the symbol below,x is ________. 
C
A) the number of neutrons
B) the atomic number
C) the mass number
D) the number of electrons
E) the elemental symbol
Correct Answer:
Verified
Correct Answer:
Verified
Q13: The element X has three naturally occurring
Q14: Which one of the following molecular formulas
Q15: Oxygen forms an ion with a charge
Q16: Which element is found in Period 2
Q17: Which species below is the chromate ion?<br>A)Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup><br>B)CrO<sub>4</sub><sup>2-</sup><br>C)CH<sub>3</sub>COO<sup>-</sup><br>D)CO<sub>3</sub><sup>2-</sup><br>E)None
Q19: Which formula/name pair is incorrect?<br>A)FeSO<sub>4</sub> iron(II)sulfate<br>B)Fe<sub>2</sub>(SO<sub>3</sub>)<sub>3</sub> iron(III)sulfite<br>C)FeS
Q20: The correct name for HClO<sub>3 </sub>is _.<br>A)hydrochloric
Q21: When calcium reacts with sulfur the compound
Q22: An unknown element is found to have
Q23: Which combination of protons,neutrons,and electrons is correct