Veidne:Chem/doc

Veidne:COinS safe This template allows you to render chemical formulas using HTML. Alternatively, you can use <chem>...</chem>, using mhchem LaTeX notation to generate formulas.

Template instructions

This template, {{chem}}, serves to simplify the writing of chemical formulas. For example,

{{chem|H|2|O}}

will yield:

H
2O

Algebraic expression as subscript

Algebraic expressions are rendered as subscripts (but must not contain upper case letters).

{{chem|C|''n''|H|2''n'' + 2}}

gives

C
nH
2n + 2

Charge

Ion charge superscripts (for: +/-) are also supported:

{{chem|H|3|O|+}}

yields a "+" as superscript:

H
3O+

Simultaneous subscripts/superscripts are automatically handled (use a hyphen for the minus sign):

{{chem|SO|4|2-}}

gives "2−" as superscript:

SO2−
4

The hyphen is converted to a true minus sign.

Atomic number and mass number

The first parameter can be used for mass number.

{{chem|4|He}}

gives:

4
He

The first two parameters can be used for mass number and atomic number.

{{chem|4|2|He}}

gives:

4
2He

Note

Only the first two parameters can handle two consecutive plain numbers (i.e. without a plus sign or a hyphen (+ or -) following). Otherwise the template will loop.

See also {{Nuclide}}

Linking

The optional parameter link changes the formula into a link. For example:

{{chem|link=water|H|2|O}}

will yield:

H
2O

Individual elements can be linked in the following manner:

{{chem|[[Hydrogen|H]]|2|[[Oxygen|O]]}} 

gives

H
2O

Notes

• To include "=" in the formula, use "=" For example, "{{chem|CH|2|=CH|2}}" yields CH
  2=CH
  2.
  • Or, don't use this template. For example, "CH₂=CH₂" yields CH₂=CH₂.
• To include "≡" in the formula, use "≡" For example, "{{chem|HC≡CH}}" yields HC≡CH.
• The template accepts up to twenty parameters in addition to link.
• This template uses {{su}}.

See also

• {{Chemical formula}}, which auto-links elements and common compounds
• {{Chem2}}
• {{Chem molar mass}}

TemplateData

Template data

Render chemical formulas using HTML. Alternatively, you can use <chem>...</chem>, using mhchem LaTeX notation to generate formulas. Up to 25 unnamed ordered parameters can be used with automatic detection of subscripts and superscripts. Veidnes parametri Šai veidnei parametrus pieņemts izmantot vienā rindā. Parametrs Apraksts Tips Statuss Link link Make the formula link to an article Piemērs Water Lapas nosaukums neobligāts 1 1 nav apraksta Nezināms neobligāts 2 2 nav apraksta Nezināms neobligāts 3 3 nav apraksta Nezināms neobligāts 4 4 nav apraksta Nezināms neobligāts 5 5 nav apraksta Nezināms neobligāts 6 6 nav apraksta Nezināms neobligāts 7 7 nav apraksta Nezināms neobligāts 8 8 nav apraksta Nezināms neobligāts 9 9 nav apraksta Nezināms neobligāts 10 10 nav apraksta Nezināms neobligāts 11 11 nav apraksta Nezināms neobligāts 12 12 nav apraksta Nezināms neobligāts 13 13 nav apraksta Nezināms neobligāts 14 14 nav apraksta Nezināms neobligāts 15 15 nav apraksta Nezināms neobligāts 16 16 nav apraksta Nezināms neobligāts 17 17 nav apraksta Nezināms neobligāts 18 18 nav apraksta Nezināms neobligāts 19 19 nav apraksta Nezināms neobligāts 20 20 nav apraksta Nezināms neobligāts 21 21 nav apraksta Nezināms neobligāts 22 22 nav apraksta Nezināms neobligāts 23 23 nav apraksta Nezināms neobligāts 24 24 nav apraksta Nezināms neobligāts