<p>What's the color of CAlcium when it is excited using high voltage source ( has somethign to do with line spectra(. I want to know teh orignal color, not its spectra, lines anyway.</p>
<p>What's the color of CAlcium when it is excited using high voltage source ( has somethign to do with line spectra(. I want to know teh orignal color, not its spectra, lines anyway.</p>