සැකිල්ල:Infobox element/symbol-to-saw/doc

• Standard atomic weight

Overview: formal value types of the standard atomic weight
Element (E) ​		Ar°(E)	Value type ​	Ar°(E), abridged or conventional	Mass number [most stable isotope]
hydrogen	1H		interval	1.0080±0.0002
nitrogen	7N		interval	14.007±0.001
fluorine	9F		number ± uncertainty	18.998±0.001
calcium	20Ca		number ± uncertainty	40.078±0.004
technetium	43Tc	(none)	most stable isotope

• Data: /symbol-to-saw
• For most stable isotope mass number (Tc, Rf, Uue etc.) see also {{Infobox element/symbol-to-most-stable-isotope}}.

Usage

Use parameter |format=:

{{Infobox element/symbol-to-saw|format=...}}

• |format=standard (default)
• |format=abridged
• |format=formal-short-rounded
• |format=year-changed
• |format=value-type
• |format=gmr-footnote
• |format=source

For 'most stable isotope' value (Tc, Rf, Uue etc.), see also {{Infobox element/symbol-to-most-stable-isotope}}.

|valformat=

sourcing

{{Infobox element/symbol-to-saw/CIAAW-saw-element-page|Hg|format=source}} →

"Standard Atomic Weights: Mercury". CIAAW. 2011.

or as |format=ref

g, m, r footnote

|format=gmr-footnote

|symbol=H, Og, g-text, m-text, r-text

|valformat=letter, footnote-text (dev Mar2023)

g	[mini-title] Geological and biological materials are known in which the element has an isotopic composition outside the limits for normal material. The difference between the atomic weight of the element in such materials and that given in the table may exceed the stated uncertainty.
m	[mini-title] Modified isotopic compositions may be found in commercially available material because the material has been subjected to some undisclosed or inadvertent isotopic fractionation. Substantial deviations in atomic weight of the element from that given in the table can occur.
r	[mini-title] Range in isotopic composition of normal terrestrial material prevents a more precise standard atomic weight being given; the tabulated value and uncertainty should be applicable to normal material.
Texts from CIAAW site, 19 Mar 2023.

(developing, Mar 2023)

enwiki prefix (mini-title)

g

not applicable for exceptional natural samples

m

not applicable for exceptional man-made samples (undisclosed enrichment)

r

natural variation too large to give single value

(from [1] -DePiep (talk) 09:48, 26 March 2023 (UTC))

Overview

මේවාත් බලන්න: Overview, and compare with wikidata

g	Geological and biological materials are known in which the element has an isotopic composition outside the limits for normal material. The difference between the atomic weight of the element in such materials and that given in the table may exceed the stated uncertainty.
m	Modified isotopic compositions may be found in commercially available material because the material has been subjected to some undisclosed or inadvertent isotopic fractionation. Substantial deviations in atomic weight of the element from that given in the table can occur.
r	Range in isotopic composition of normal terrestrial material prevents a more precise standard atomic weight being given; the tabulated value and uncertainty should be applicable to normal material.

Updates

Data templates to update

• {{Infobox element/symbol-to-saw}} -- meta

data

{{CIAAW2021}}

• {{Infobox element/symbol-to-saw/standard}}
• {{Infobox element/symbol-to-saw/abridged}}
• {{Infobox element/symbol-to-saw/formal-short-rounded}}

secondary data

• {{Infobox element/symbol-to-saw/formal-short-rounded}} -- uncertainties removed; informal (e.g., in periodic table)
• {{Infobox element/symbol-to-saw/year-changed}} -- by CIAAW
• {{Infobox element/symbol-to-saw/value-type}}
• {{Infobox element/symbol-to-saw/gmr-footnote}}

See also

• {{Standard atomic weight of the elements}} - list, mainspace
• {{Infobox element/standard atomic weight/value illustration}} - illustrative table with 6 examples, mainspace

• {{Infobox element/symbol-to-saw/overview}}
• {{Infobox element/symbol-to-saw/overview-compare-wikidata}} -- compares values with WD values

• {{Infobox element/symbol-to-most-stable-isotope}}