Which element can form more than one kind of monatomic ion?
1. a. Se
2. b. Sn
3. c. S
4. d. Sr
I think I remember Sn(II) and Sn(IV) in one of my textbooks.
The element that can form more than one kind of monatomic ion is:
c. S (sulfur)
To determine which element can form more than one kind of monatomic ion, we need to look at their respective positions in the periodic table and their valence electron configurations.
Option a: Se (selenium) is located in group 16 of the periodic table. Selenium typically gains two electrons to form the Se^2- ion.
Option b: Sn (tin) is located in group 14 of the periodic table. Tin can lose either two or four electrons to form the Sn^2+ or Sn^4+ ions, respectively.
Option c: S (sulfur) is located in group 16 of the periodic table, just like selenium. Sulfur typically gains two electrons to form the S^2- ion.
Option d: Sr (strontium) is located in group 2 of the periodic table. Strontium is not known to form multiple kinds of monatomic ions. It typically loses two electrons to form the Sr^2+ ion.
From the choices presented, the element that can form more than one kind of monatomic ion is:
b. Sn (tin)