While going down in the group of non-metals (14, 15, 16 and 17) the electronegative character of non-metals decreases. Typical example is of group 15 elements. The elements nitrogen (2nd period) and phosphorus (3rd period) are non-metals and their oxides are acidic in nature. The element...
Explain why metal oxides tend to be basic if the oxidation number of the metal is low and acidic if the oxidation number of the metal is high. Explain why metals conduct electricity. Why is iron more reactive than copper? Why do metals tend to be malleable?
combined with a non-metal or radical written last in a formula.Ex.,NaCl,Fe2(S04)3,Ca(CO)2.4.Oxides are compounds containing oxygen and only one other element.If the element other than oxygen is a nonmetal,the oxide is classed as a nonmetal oxide or an acidic anhydride.T he latter ...
There are three common ways to generate a bismuth film including (i) by preplating it from an acidic solution which is called an ex situ preparation, (ii) by codeposition with the analyte which is commonly known as an in situ setup and (iii) by electrode modification of a film, such ...
Since the expansion indicates more production of AgNPs [47], it is seen that acidic and highly alkaline pH causes agglomeration and instability of AgNPs. pH is a significant factor that eventually can change bioactive molecules’ size and electrical charge, as well as their ability to interact ...
Explain why metal oxides tend to be basic if the oxidation number of the metal is low and acidic if the oxidation number of the metal is high. Discuss why we see an increase in boiling point with larger alkane molecules Explain the difference between ir...
The present invention relates to metals or metal-containing articles of manufacture which are normally subject to corrosion and which have been rendered substantially non-corrodible by treatment with a dispersion of a certain free dicarboxylic acid in a suitable vehicle. Metallic surfaces,... Applica...
Oxides are compounds containing oxygen and only one other element.If the element other than oxygen is a nonmetal, the oxide is classed as a nonmetal oxide or an acidic anhydride. The latter name comes about because water added to nonmetal oxides under certain conditions produces acids. Likewise,...
It will be understood that by the term "cation," as used throughout the specification and claims, is meant hydrogen and such other elements as are mentioned herein, and, in general, atoms or radicals which are regarded as bearing a positive charge or capable of replacing acidic hydrogen. ...
It is also important to understand the optimal surface termination and morphology of the BDD for the MALDI-MS analysis of highly hydrophilic (highly acidic or highly basic) peptides. The results demonstrate that for the highly acidic AC18 peptide (e.g., negatively charged, with a charge, at...