If zinc has an affinity for oxygen, it must be because the zinc is either electropositive or electronegative to oxygen.    From Wordnik.com.  [Popular Science Monthly Oct, Nov, Dec, 1915 — Volume 86] Reference

If it has a greater affinity for oxygen than copper has, then the zinc must be either electropositive or electronegative to copper.    From Wordnik.com.  [Popular Science Monthly Oct, Nov, Dec, 1915 — Volume 86] Reference

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.    From Wordnik.com.  [Atomism from the 17th to the 20th Century] Reference

In the parlance of chemists, metallic lead is electropositive.    From Wordnik.com.  [The Economist: Correspondent's diary] Reference

It is the most electropositive chemical element in the periodic table.    From Wordnik.com.  [CreationWiki - Recent changes [en]] Reference

In all groups of chemically similar elements the heaviest are the most electropositive.    From Wordnik.com.  [The Economist: Correspondent's diary] Reference

That has the effect of making metallic lead less electropositive ie, more electronegative.    From Wordnik.com.  [The Economist: Correspondent's diary] Reference

Younger brother of one the authors, the "… most electropositive and most alkaline" of the.    From Wordnik.com.  [Site Home] Reference

Lithium, at the top of the list, is virtually dynamite, the most electropositive material known.    From Wordnik.com.  [Modern Mechanix] Reference

Lanthanum is electropositive and reacts slowly with cold water and quickly with hot water to form a lanthanum hydroxide.    From Wordnik.com.  [CreationWiki - Recent changes [en]] Reference

As it turns out, Cs is the atomic symbol for the element Cesium, the "… most electropositive and most alkaline element.".    From Wordnik.com.  [Site Home] Reference

Metallic tin is not electropositive enough compared with the electronegativity of its oxide to deliver a useful potential difference.    From Wordnik.com.  [The Economist: Correspondent's diary] Reference

Scientists have long recognized lithium's promise as the stuff of superior batteries - it's highly electropositive, which means that it readily discharges ions, and as the lightest of metals, it enables lightweight gadgets that pack a lot of power.    From Wordnik.com.  [SEEDMAGAZINE.COM] Reference

Hence, the exposed electropositive surface of α4 is decreased significantly in reduced Spx. Other helix α4-related conformational changes include the repositioning of residue R60, whereby its Cα carbon has moved 1.3 Å from its oxidized position.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

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.    From Wordnik.com.  [The Economist: Correspondent's diary] Reference