0_Apprentice
my favorite color is green
1_Wizard
I like green too, it's between blue and yellow on the visible spectrum.
0_Apprentice
Oh yes. Why do you like it. I love it because it is the color of nature
1_Wizard
I like it because it reminds me of the emerald and other minerals that are of green color. The green in them is because they have chromium.
0_Apprentice
Oh i see. Does that mean chromium is green?
1_Wizard
Yes exactly, Chromium is a chemical element, it's symbol is Cr, it's atomic number is 24.