Re: [lojban] Re: Chemical elements

[Pierre Abbat <phma@phma.optus.nu>]

On Friday 18 June 2010 10:01:19 Daniel Brockman wrote:
> This obscure naming exercise seems rather pointless to me.

Which exercise? There have been several, and you didn't quote anything.

> The priority should be to invent a way to talk about these atoms,
> molecules, compounds, etc., using clear, compositional expressions.

I agree. There are, though, some common, but complicated, molecules, such as 
porphyrin, the square chelating molecule common to heme, chlorophyll, and 
vitamin B12.

> What are the basic brivla that we need to express these concepts?
>
> For example, is this a missing brivla?
>
>     x1 is an atom with x2 protons and x3 neutrons

{ratni} has the total number of nucleons in x3. One could make a lujvo.

> This?
>
>     x1 is a nucleus of atom x2

{ratmidju}, though jbovlaste currently has no better def than noralujv's for 
it.

> Or this?
>
>     x1 is an ion of atom x2 with x3 extra electrons

{ionti}

> What about this?
>
>     x1 is a molecule consisting of atoms x2

Apparently missing. {xumsle} has the chemical in x2.

> Or this?
>
>     x1 is an alkane with x2 carbon atoms and shape x3
>
> Or what about this one?
>
>     x1 is a molecule consisting of x2 attached to hydrocarbon x3 at the
>     carbon atom in position x4

It's not just hydrocarbons that get things attached to their carbon atoms. 
Some molecules have carbon-and-nitrogen rings with side chains attached.

Pierre
-- 
.i toljundi do .ibabo mi'afra tu'a do
.ibabo damba do .ibabo do jinga
.icu'u la ma'atman.

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