Multiple Choice
Consider the general valence electron configuration of ns2np5 and the following statements: (i) Elements with this electron configuration are expected to form -1 anions.
(ii) Elements with this electron configuration are expected to have large positive electron affinities.
(iii) Elements with this electron configuration are nonmetals.
(iv) Elements with this electron configuration form acidic oxides.
Which statements are true?
A) (i) and (ii)
B) (i) , (ii) , and (iii)
C) (ii) and (iii)
D) (i) , (iii,) and (iv)
E) All statements are true.
Correct Answer:

Verified
Correct Answer:
Verified
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
Q130: The alkali metal that is naturally radioactive
Q131: Alkali metals tend to be more reactive
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>
Q136: Which one of the following is a
Q137: All of the following reactions concerning alkali