Named for a distant planet, and yet found on Earth. Baked and scorched as I circle the heavens, yet I'll go to pieces if I lose my cool on the ground. A staple of alchemical formulae, once thought of as alive but I often bring death. Which element am I?

Made from vegetables or plants, I provide energy. But too much of me can contribute to obesity. Therefore, some dieters prefer a chemical counterpart. By the way, you might whisper this word to your sweetheart,

If large and red, please do avoid, But don't become too paranoid, When on your coat he'll bind a gap, He's such a helpful little chap. When fungus bears this fellow's name, You can eat it: it's fair game. When told to do this to your lip, It's euphamistic just like zip. What is this item?

I consider myself quite the individual. When my life’s over I leave a shiny residual. I float, and I flitter swirling like glitter A finger may catch me But only, momentarily

I have space but no room, I can enter but not move, And I can speak without a voice.