Describe the typical properties of Groups I and II elements in the Periodic Table and why their reactivity increases down the groups. Describe the typical properties of transition metals; know that...
Magnetic properties of a spin-1/2 quadrumer chain We study a novel S=1/2 cluster chain Hamiltonian which has recently been proposed in the context of the charge ordered low-temperature phase of alpha'-NaV2... A Honecker,W Brenig 被引量: 16发表: 2000年 Can a frustrated spin-cluster ...
The magnetic properties of pure transition-like metals are discussed within the single site approximation, to take into account the electron correlation. The metal is described by two hybridized bands one of which includes the Coulomb correlation. Our results indicate that ferromagnetism follows from ...
Describe the atom and the components it is made of. Describe the properties of water. Describe the characteristic properties of metals, nonmetals, and metalloids. Describe how the properties of the different types of elements (metals, nonmetals, metalloids) differ. Describe some uses of lithium a...
What is meant by the periodicity of properties? Explain the six-fold rotational axis in detail. Explain the general concepts of the molecular orbital theory. Use examples. Explain how a chemical reaction occurs according to the collision model. Explain the meaning of the orientation factor ...
We study some mathematical properties of a novel implicit constitutive relation wherein the stress and the linearized strain appear linearly that has been recently put into place to de- scribe elastic response of porous metals as well as materials such as rocks and concrete. In the corresponding ...
transition metalsredox propertiesMany interesting properties of polyoxometalates (POMs) are related to their ability to reversibly accept and release electrons. The correct computational description of metal electrons in POMs is central to fully understand the implications and mechanisms related to reduced ...
The present form of periodic table is helpful to the students of chemistry in a way that they can corelate or compare the different properties of different elements from this table and they can actually study the elements properly from this table....
control. Data will be reported to demonstrate significant variations in elastic and plastic properties between grains and emphasise the role of time dependent strain accumulation. Implications for the “dwell sensitive fatigue” or “cold creep” response of conventional titanium alloys will be discussed...