What species has the electron configuration Ar3d4? A) Mn2+ B) ...

[misspop]

What species has the electron configuration Ar3d4?
 
  A) Mn2+
  B) Cr2+
  C) V3+
  D) Fe3+
  E) K+

Question 2

The oxidation state of nitrogen in the NO2 molecule is ________.
 
  A) +4
  B) +3
  C) +5
  D) +2
  E) -3

Question 3

The balanced half-reaction in which chlorine gas is reduced to the aqueous chloride ion is a ________ process.
 
  A) one-electron
  B) two-electron
  C) four-electron
  D) three-electron
  E) six-electron

[meow1234]

Answer to Question 1

B

Answer to Question 2

A

Answer to Question 3

B