Multiple Choice
Which element belongs to the alkali metals?
A) rubidium
B) germanium
C) barium
D) iodine
E) argon
Correct Answer:
Verified
Correct Answer:
Verified
Q10: The formula of the chlorite ion is<br>A)Cl<sub>2</sub>O<sub>3</sub><sup>-</sup>.<br>B)ClO<sub>4</sub><sup>-</sup>.<br>C)Cl<sup>-</sup>.<br>D)ClO<sub>2</sub><sup>-</sup>.<br>E)ClO<sub>3</sub><sup>-</sup>.
Q11: Which of the following molecules contains the
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
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>.
Q17: Which of the following statements about different
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