AT NO

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Related to atomic number: Isotopes, atomic weight
AcronymDefinition
AT NOAtomic Number (also seen as ATNO, without the space)
References in periodicals archive ?
However, distribution of isotopes depending on a atomic number of the elements (Fig.
Finally, I had to ask him to name the elements with atomic numbers lower than 20.
Information obtained by these methods is elemental not chemical in nature, and the low atomic number elements are not detected, generally those elements below sodium in atomic number.
For elements of atomic number less than approximately 30, the K[alpha] line is nearly always the best (or only) choice.
For elements with an atomic number greater than 10, the detection limit is about 1 to 2% by weight, with quantitative accuracy for concentration data ranging from 2 to 5%, depending on how the data is acquired.
1896), detected a new element with the atomic number of 75.
When we're done, I hang the posters by atomic number so it looks like a gigantic periodic table!
As atomic number gets higher and higher, stability generally diminishes, eventually reaching a point where the new atoms decay away into something else almost as fast as physicists can make them.
Berlin, Feb 25 (ANI): Reports indicate that the heaviest recognized chemical element with the atomic number 112 has officially been named "Copernicium" and carries the chemical symbol "Cn".
Those steps include measuring the incident electron beam current and voltage, knowing the angle between the electron beam and the sample (takeoff angle), collecting the emitted x rays from the sample, comparing the emitted x-ray flux to known standards (to determine the k-ratio) and transformation of the k-ratio to concentration using algorithms which includes, as a minimum, the atomic number, absorption, and fluorescence corrections.
BSEs travel in straight lines and are loaded with good information about sample chemistry, such as average atomic number. But BSEs are not produced in vast numbers and are difficult to detect, especially at low beam currents and voltages.