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·Topography
·The surface features of an object or "how it looks", its texture; direct relation between these features and materials properties (hardness, reflectivity...etc.)
·Morphology
·The shape and size of the particles making up the object; direct relation between these structures and materials properties (ductility, strength, reactivity...etc.)
·Composition
· The elements and compounds that the object is composed of and the relative amounts of them; direct relationship between composition and materials properties (melting point, reactivity, hardness...etc.)
·Crystallographic Information
·How the atoms are arranged in the object; direct relation between these arrangements and materials properties (conductivity, electrical properties, strength...etc.)
What else can I help you with?
How many electrons are shown in its electron dot structure?
The number of electrons shown in an electron dot structure depends on the element. For example, carbon would have four electrons shown in its electron dot structure, while oxygen would have six electrons. The electron dot structure represents the valence electrons of an atom.
How many electron energy shells are in roegenium?
It's predicted that this element will be shown to have seven. Please see the link.
What does 100x magnification mean?
A 100x magnification means that an object will appear 100 times larger than its actual size when viewed through the lens of a microscope or magnifying device. This level of magnification allows for detailed observation of small structures or specimens that are not easily visible to the naked eye.
Does measuring the momentum of the electron around the nucleus cause it to behave as a particle and so the cloud disappears as shown in double slots experiment?
Well, the act of measuring an electron's momentum changes its position, rendering the measurement invalid. This is the Heisenberg Uncertainty Principle.
What part of atom that form a negative bond?
Bonds are formed by the Sharing of electrons. If you wanted a negative bond, then you'd share negative electrons. For example... Hydrogen and Fluorine Hydrogen has one electron shown by it's configuration. 1s1 Notice that hydrogen's sole electron is also it's valence electron and located in the first energy level. Florine has seven electrons shown by it's configuration 1s22s22p5. it's all in the electron sharing.
What are two main types of electron microscopes?
there are several kind of different , we can separate : 1- Methods of analysis 2- properties of Methods of analysis 3-properties of their structure 4-resolution and resoiving power of their (by : S.M Zendehbad)
The main advantage of the transmission electron microscope is that it shows?
The main advantage of the transmission electron microscope is its high resolution, allowing for the visualization of internal structures at the nanometer scale. This microscope can reveal details of the ultrastructure of samples with great clarity, making it useful for studying materials and biological specimens at the atomic level.
What is the cell membranes appearance?
Bio membranes are not visible under the light microscope because their plasma thickness is below the resolving power of the microscope. Under electron microscope bio membranes appear to be trilaminar or tripartite. There is an electron dense or dark layer on either side of middle electron transparent layer. Freeze etching technique has shown that a membrane possesses particles of different sizes.
Why are electron microscopes capable of revealing details much smaller than those shown in a light microscope?
To put it in very simple terms, because the wavelength of an electron is much smaller than the wavelength of visible light.
What are the disadvantages of the scanning tunneling microscope as compared to a conventional microscope?
The best way to illustrate the disadvantages of the scanning tunneling microscope (STM) over a conventional microscope might best be shown by a comparison. Imagine using a pair of field glasses to watch birds in a heavily wooded area. Now imagine watching those birds in the same area with an 8" reflecting telescope and a "big" eyepiece. You could be looking at a bird with the telescope and not know it because you wouldn't even be able to see the whole bird.The STM can map a single atom on the surface of a sample with its probe, but it cannot show us the shape of a single celled animal because it is extremely powerful -- too powerful for that application. The microscope is something we can use all day to study tiny animals like, say, an amoeba.
How many dots are shown for in the electron dot diagram for calcium?
In the electron dot diagram for calcium, there are two dots shown, as calcium has two valence electrons.
What is the name and location of the electron responsible for chemical behavior?
outer electron shell, as shown by the grouping on the periodic table.
What type of electron is displayed in an electron dot diagram?
Electrons shown in an electron dot diagram are the valence electrons. As a "for instance" here, look at hydrogen and lithium. Each one has a single electron in their outer most or valence shell, and so each will be shown by writing the chemical symbol and by adding a single dot. H. Li.
Shape of electron?
As far as measurements have shown an electrons is almost a perfect sphere.
Are covalent bonds are sometimes shown using electron dot diagrams.?
true
What is the function of the scanner in microscope?
A scanning electron microscope (SEM) is a type of electron microscope that images a sample by scanning it with a high-energy beam of electrons in araster scan pattern. The electrons interact with the atoms that make up the sample producing signals that contain information about the sample's surfacetopography, composition, and other properties such as electrical conductivity.The types of signals produced by an SEM include secondary electrons, back-scattered electrons (BSE), characteristic X-rays, light (cathodoluminescence), specimen current and transmitted electrons. Secondary electron detectors are common in all SEMs, but it is rare that a single machine would have detectors for all possible signals. The signals result from interactions of the electron beam with atoms at or near the surface of the sample. In the most common or standard detection mode, secondary electron imaging or SEI, the SEM can produce very high-resolution images of a sample surface, revealing details less than 1 nm in size. Due to the very narrow electron beam, SEM micrographs have a large depth of field yielding a characteristic three-dimensional appearance useful for understanding the surface structure of a sample. This is exemplified by the micrograph of pollen shown to the right. A wide range of magnifications is possible, from about 10 times (about equivalent to that of a powerful hand-lens) to more than 500,000 times, about 250 times the magnification limit of the best light microscopes. Back-scattered electrons (BSE) are beam electrons that are reflected from the sample by elastic scattering. BSE are often used in analytical SEM along with the spectra made from the characteristic X-rays. Because the intensity of the BSE signal is strongly related to the atomic number (Z) of the specimen, BSE images can provide information about the distribution of different elements in the sample. For the same reason, BSE imaging can image colloidal gold immuno-labels of 5 or 10 nm diameter which would otherwise be difficult or impossible to detect in secondary electron images in biological specimens. Characteristic X-rays are emitted when the electron beam removes an inner shell electron from the sample, causing a higher energy electron to fill the shell and release energy. These characteristic X-rays are used to identify the composition and measure the abundance of elements in the sample.
What is the functions of the scanner in the microscope?
A scanning electron microscope (SEM) is a type of electron microscope that images a sample by scanning it with a high-energy beam of electrons in araster scan pattern. The electrons interact with the atoms that make up the sample producing signals that contain information about the sample's surfacetopography, composition, and other properties such as electrical conductivity.The types of signals produced by an SEM include secondary electrons, back-scattered electrons (BSE), characteristic X-rays, light (cathodoluminescence), specimen current and transmitted electrons. Secondary electron detectors are common in all SEMs, but it is rare that a single machine would have detectors for all possible signals. The signals result from interactions of the electron beam with atoms at or near the surface of the sample. In the most common or standard detection mode, secondary electron imaging or SEI, the SEM can produce very high-resolution images of a sample surface, revealing details less than 1 nm in size. Due to the very narrow electron beam, SEM micrographs have a large depth of field yielding a characteristic three-dimensional appearance useful for understanding the surface structure of a sample. This is exemplified by the micrograph of pollen shown to the right. A wide range of magnifications is possible, from about 10 times (about equivalent to that of a powerful hand-lens) to more than 500,000 times, about 250 times the magnification limit of the best light microscopes. Back-scattered electrons (BSE) are beam electrons that are reflected from the sample by elastic scattering. BSE are often used in analytical SEM along with the spectra made from the characteristic X-rays. Because the intensity of the BSE signal is strongly related to the atomic number (Z) of the specimen, BSE images can provide information about the distribution of different elements in the sample. For the same reason, BSE imaging can image colloidal gold immuno-labels of 5 or 10 nm diameter which would otherwise be difficult or impossible to detect in secondary electron images in biological specimens. Characteristic X-rays are emitted when the electron beam removes an inner shell electron from the sample, causing a higher energy electron to fill the shell and release energy. These characteristic X-rays are used to identify the composition and measure the abundance of elements in the sample.
