Redigerer Mal:Kjemi/dok (avsnitt)

== Bruk ==
Malen {{Tl|kjemi}} gjør det enklere å skrive kjemiske formler. For eksempel vil {{tlx|kjemi|H|2|O}} gi: {{kjemi|H|2|O}}

===Algebraic expression as subscript===
Algebraic expressions are rendered as subscripts (but must not contain upper case letters).
<pre>
{{kjemi|C|''n''|H|2''n''&amp;nbsp;+&amp;nbsp;2}}
</pre>
gives
: {{kjemi|C|''n''|H|2''n''&nbsp;+&nbsp;2}}

===Charge===
Ion charge superscripts (for: +/-) are also supported:
<pre>
{{kjemi|H|3|O|+}}
</pre>
yields a "+" as superscript:
: {{kjemi|H|3|O|+}}

Simultaneous subscripts/superscripts are automatically handled (use a hyphen for the minus sign):
<pre>
{{kjemi|SO|4|2-}}
</pre>
gives "2-" as superscript:
: {{kjemi|SO|4|2-}}
;Note: 
:The hyphen is converted to a true minus sign.

===Atomic number and mass number===
The first parameter can be used for mass number.
<pre>
{{kjemi|4|He}}
</pre>
gives:
: {{kjemi|4|He}}

The first two parameters can be used for mass number and atomic number.
<pre>
{{kjemi|4|2|He}}
</pre>
gives:
: {{kjemi|4|2|He}}

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

===Linking===
The optional parameter <code>link</code> changes the formula into a link. For example:
<pre>
{{kjemi|link=vann|H|2|O}}
</pre>
will yield:
: {{kjemi|link=vann|H|2|O}}

For linking individual elements can be linked in the following manner.
<pre>
{{kjemi|[[Hydrogen|H]]|2|[[Oksygen|O]]}} 
</pre>
gives 
: {{kjemi|[[Hydrogen|H]]|2|[[Oksygen|O]]}}