Multiple Choice
The alkali metal that is naturally radioactive is ________.
A) rubidium
B) cesium
C) lithium
D) francium
E) sodium
Correct Answer:
Verified
Correct Answer:
Verified
Q125: When two elements combine to form a
Q126: The ion with the smallest diameter is
Q127: _ is isoelectronic with scandium.<br>A)Cr<sup>3+</sup><br>B)Mn<sup>5+</sup><br>C)Mn<br>D)Mn<sup>4-</sup><br>E)K<sup>+</sup>
Q128: Ozone is a a(n)_ of oxygen.<br>A)isotope<br>B)allotrope<br>C)precursor<br>D)peroxide<br>E)free radical
Q129: Element M reacts with chlorine to form
Q131: Alkali metals tend to be more reactive
Q132: Consider the general valence electron configuration of
Q133: Which of the following noble gases is
Q134: Electron affinity measures how easily an atom
Q135: Which element is solid at room temperature?<br>A)Cl<sub>2</sub><br>B)F<sub>2</sub><br>C)Br<sub>2</sub><br>D)I<sub>2</sub><br>E)H<sub>2</sub>