Electronegativity vs electrochemical series

AI Thread Summary
The discussion centers on the apparent contradiction between carbon's position in the electrochemical series and its electronegativity as indicated by Pauling values. Carbon is ranked higher than hydrogen in the electrochemical series, suggesting it is more electropositive, yet its electronegativity is higher (2.55 for carbon vs. 2.2 for hydrogen). This raises questions about the relationship between electropositivity and electronegativity, with participants noting that these are different scales and not directly comparable. Additionally, the reactivity of lithium compared to potassium is mentioned, highlighting that lithium has a greater standard electrode potential (Eo) despite being less reactive. The discussion emphasizes the complexity of these chemical properties and the need for careful interpretation of the data.
Miffymycat
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Carbon is higher in the electrochemical series than hydrogen, which indicates it is more electropositive, but Pauling values show carbon as more electronegative - 2.55 vs 2.2!?

Any reason / explanation for the apparent contradiction? Tried looking for an Eo value for C (should be more negative then -0.76V) but no joy ...

Come to that, Li is less reactive than K, but has a greater Eo ...

Thanks in advance for any replies
 
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Miffymycat said:
Carbon is higher in the electrochemical series than hydrogen, which indicates it is more electropositive

This is comparing apples and oranges. There exist some slight correlation, but these are separate scales.
 

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