Is it possible to have <sub>scripts in <option>s in html?

I have a drop down menu full of chemical elements. Is there any w开发者_高级运维ay I could format them properly? Ex: H₂O

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You could try using the Unicode subscript characters:

<select>
    <option>H₂O</option>
</select>

Working sample here: http://jsfiddle.net/pZ3mg/