Question:
Which among the following elements does NOT exhibit \(-2\) oxidation state?
Which among the following elements does NOT exhibit \(-2\) oxidation state?
Show Hint
The -2 state becomes less common down the group; polonium is a metal and hardly shows it.
Updated On: Nov 12, 2026
- O
- Se
- Te
- Po
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept
Group 16 elements have the configuration \(ns^{2}np^{4}\) and can gain two electrons to show the \(-2\) state.
Step 2: Trend down the group
As size increases and electronegativity decreases, the tendency to form \(-2\) falls.
Step 3: Elements in the question
O, Se and Te readily form oxides, selenides and tellurides.
Polonium is a metal and mainly shows \(+2\) and \(+4\) states.
Final Answer:
Polonium does not show the -2 oxidation state. \[ \boxed{\text{(D) }\text{Po}} \]
Group 16 elements have the configuration \(ns^{2}np^{4}\) and can gain two electrons to show the \(-2\) state.
Step 2: Trend down the group
As size increases and electronegativity decreases, the tendency to form \(-2\) falls.
Step 3: Elements in the question
O, Se and Te readily form oxides, selenides and tellurides.
Polonium is a metal and mainly shows \(+2\) and \(+4\) states.
Final Answer:
Polonium does not show the -2 oxidation state. \[ \boxed{\text{(D) }\text{Po}} \]
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