Multiple Choice
Which of the following statements about different elements is incorrect?
A) Potassium is an alkali metal.
B) Fluorine is a halogen.
C) Aluminum is a transition element.
D) Barium is an alkaline earth metal.
E) Helium is a noble gas.
Correct Answer:
Verified
Correct Answer:
Verified
Q12: How many electrons does a sulfide ion
Q13: Which one of the following equations is
Q14: Neon has three naturally occuring isotopes.The abundance
Q15: Which element belongs to the alkali metals?<br>A)rubidium<br>B)germanium<br>C)barium<br>D)iodine<br>E)argon
Q16: The formula for the sulfide ion is<br>A)SO<sub>3</sub><sup>2-</sup>.<br>B)SO<sub>4</sub><sup>2-</sup>.<br>C)S<sub>2</sub>O<sub>3</sub><sup>2-</sup>.<br>D)S<sup>2-</sup>.<br>E)HSO<sub>4</sub><sup>-</sup>.
Q18: Choose the group containing the most reactive
Q19: An element,X,has the following isotopic composition: X-200,90%;
Q20: The empirical formula of a salt consisting
Q21: Treatment of sodium borohydride with sulfuric acid
Q22: Naturally occurring element X exists in three