from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Having a positive electric charge.
- adj. Capable of acting as a positive electrode.
- adj. Tending to release electrons to form a chemical bond.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. having a positive electric charge
- adj. tending to release electrons to form a chemical bond
- n. A body which passes to the negative pole in electrolysis.
Here electropositive copper combines with electronegative oxygen but in a way that leaves the combination slightly electropositive, whereas electropositive sulphur combines with oxygen in a way that leaves the combination slightly electronegative.
If zinc has an affinity for oxygen, it must be because the zinc is either electropositive or electronegative to oxygen.
If it has a greater affinity for oxygen than copper has, then the zinc must be either electropositive or electronegative to copper.
That has the effect of making metallic lead less electropositive ie, more electronegative
However, although the properties of these basic chemical reactions have been measured and understood to the nth degree, no one has been able to show from first principles exactly why lead and lead dioxide tend to be so electropositive and electronegative.
In the parlance of chemists, metallic lead is electropositive.
In all groups of chemically similar elements the heaviest are the most electropositive.
Metallic tin is not electropositive enough compared with the electronegativity of its oxide to deliver a useful potential difference.
As it turns out, Cs is the atomic symbol for the element Cesium, the "… most electropositive and most alkaline element."
Younger brother of one the authors, the "… most electropositive and most alkaline" of the