Results 281 to 290 of about 1,584,637 (354)
Some of the next articles are maybe not open access.
Ionic and bonding defects in hydrogen-bonded chains
Physics Letters A, 1997Abstract In this paper, we present a two-component soliton model with a two-parameter doubly periodic potential. Ionic and bonding kink pairs are formed in our model. The influence on the effective masses, mobilities and nucleation rates of the two kink pairs, due to the motion of the heavy ion and the variation of the parameter b in the potential,
Bin Zhou, Ji-Zhong Xu
openaire +1 more source
2020
This mixed methods study compared two groups of high school students’ understanding of the ionic bond and the dissolving process. A 5 lesson curriculum unit was developed using Taber’s electrostatic framework (1997) focusing on the electrostatic forces between ions compared to a molecular framework (business-as-usual) and the Next Generation Science ...
openaire +1 more source
This mixed methods study compared two groups of high school students’ understanding of the ionic bond and the dissolving process. A 5 lesson curriculum unit was developed using Taber’s electrostatic framework (1997) focusing on the electrostatic forces between ions compared to a molecular framework (business-as-usual) and the Next Generation Science ...
openaire +1 more source
2019
Have you ever wondered how everything around you is held together? Well, in this simulation, you will learn the basics of atomic bonding in ionic and covalent compounds and how to distinguish those compounds experimentally. Using this knowledge you’ll help your friend to analyze two mysterious substances he received from an alchemist.
Aaron Gardner +4 more
openaire +1 more source
Have you ever wondered how everything around you is held together? Well, in this simulation, you will learn the basics of atomic bonding in ionic and covalent compounds and how to distinguish those compounds experimentally. Using this knowledge you’ll help your friend to analyze two mysterious substances he received from an alchemist.
Aaron Gardner +4 more
openaire +1 more source
This study aims to provide an in-depth interpretation of the properties of ionic compounds, with sodium chloride (NaCl) serving as the principal model, while simultaneously conducting a comparison study between its solid and aqueous states. The objective is to clarify the relationship among ionic bond formation, crystal lattice structure, lattice ...
openaire +1 more source
openaire +1 more source
Ionic Bond ⇄ Covalent Bond Electron Transitions in Alloys
Russian Metallurgy (Metally), 2018The ordering–separation phase transition, which has been earlier detected in many alloys and causes microstructural changes, is shown to begin with changes in the electronic structure of an alloy. In contrast to pure metals, where all valence electrons take part in the formation of a metallic bond, some pairs of valence electrons in an alloy turn out ...
openaire +1 more source
Covalent versus Ionic Bonding in Al-C Clusters.
Journal of Physical Chemistry A, 2017N. Du, Huihui Yang, Hongshan Chen
semanticscholar +1 more source
The ionic character of bonds and bond properties
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1951The theory of ionic-covalent resonance has been outlined. It has been emphasized that the quantitative use of the theory necessitates assumptions which are not capable of general proof and that justification of the method rests mainly on the success achieved in the interpretation of experimental data.
openaire +1 more source

