Isotope

[Chris Clemens]

In Chemical Code the isotope C-14 would be done without the letter sign or the number sign.

What about the isotope carbon-14? Is that also done without a number sign in Chemical Code?
Thank you.

[Chris Clemens]

An answer is given after next note.
edited by Lindy on 4/2/2013

[Lindy Walton]

Hello Lindy,
I only have information from a question that was answered in the NBA forum.
The information which I pasted below states not to use the NI after the hyphen in chemical isotopes.

This question was asked March 25, 2009.

Subject: ELI and NI in chemical isotopes

Question: When brailling isotopes in chemistry such as U-235, Ba-142, Kr-91, etc., are the ELI and NI used?
Does it make a difference if the text is narrative or showing a reaction equation?

Answer: (Dorothy asked a Chemical Code Expert and then answered)
Here is the answer I got: the Chem Code says that the symbol for an element is not an abbreviation by rule, so ... no ELI with a single element symbol and no NI with the number following the hyphen. I know it looks really weird, but that's the way it is.

[Lindy Walton]

Thank you for pointing out my error. After applying the Chemistry Code approach to chemical SYMBOLS (C is *not an abbreviation for carbon, it is the chemical SYMBOL for carbon), Section 11.d of the Nemeth Code is what to follow for C-14: no ELI, no NI. Section 9.f is followed for carbon-14 since carbon is a word: yes contract "ar," yes NI. Here is the path of Nemeth Code rules to follow when searching for hyphen rules:

NC §9.b. The numeric indicator must be used after a punctuation mark. However, the hyphen requires special attention (see section f below). [4 examples]

NC §9.f. The numeric indicator must be used after a hyphen when the hyphen follows a word, an abbreviation, or a mark of punctuation. However, also see §11d. [6 examples]

NC §11.d. The numeric indicator must not be used after a hyphen if the hyphen follows a numeral, a letter, or other mathematical expression. [3 examples]

I will delete my original answer so future readers are not misled.

[Author]

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