This is because the most common metal elements (including Fe) are considerably more electropositive
than the carbon atoms in organic compounds.
Carbide A binary compound of carbon with a more electropositive
element, often used to coat cutting surfaces (such as chainsaw teeth) for increased strength and sharpness.
Therefore, the present study had the following objectives: (i) investigate the involvement of permanent and variable negative charges of 2 electropositive
oxisols in potassium-calcium competitive adsorption; and (ii) describe the features of potassium-calcium exchange in these soils using the Rothmund-Kornfeld formulation of the Gaines-Thomas approach and its combination with the exchange site distribution model derived by Dufey and Delvaux (1989).
Highly proliferative tissue is more electropositive
and hence gives a higher millivolt measurement than less proliferative tissue.
Bi in 3-coordination with oxygen appears to exist only in systems containing the electropositive
alkaline-earth cations Ca and Sr.
When this occurs the galvanic property of metals requires that the metal higher or more electropositive
, such as magnesium, will corrode or "sacrifice" in preference to slower oxidizing metals, such as steel.
MEP analysis showed that electronegative region is spread over nitrogen of triazole ring, whereas the electropositive
region on the proton attached to the pyridine and triazole moieties.
In addition to magnetic repellents, electropositive
metal (EPM) repellents have also been explored for their ability to overstimulate the electrosensory system of an approaching shark (Rice, 2008; Stoner and Kaimmer, 2008).
N]2(P) pathway at the electropositive
phosphorus centre generally dominates and in fact is the only pathway detected with the OH-/[H.
Epoxides 2-4 are very toxic for experimental work, therefore, theoretical calculations became the most viable method to study them, Since tin and germanium are more electropositive
than silicon, their electron-withdrawing ability or inductive effect will be greater than that of silicon.
hombroniana were evaluated by aluminium chloride colorimetric method in which a keto group (C-4), hydroxyl groups at C-3 and C-5 or the ortho dihydroxyl groups in the A or B ring of flavonoids form a pink complex with high electropositive
aluminium (Al3+) from AlCl3, and the complex is spectrophotometrically measured at 510 nm.
metals (generally mixtures of the lanthanide elements praseodymium, neodymium, cerium, lanthanum, samarium, and yttrium) rouse juvenile lemon sharks (Negaprion brevirostris), nurse sharks (Ginglymostoma cirratum), and spiny dogfish sharks (Squalus acanthias) from tonic immobility when brought close to the head (Stoner and Kaimmer, 2008).