If you look at the stem of an artichoke you will see a ring, with tough green bark (for want of a better term) surrounding a paler green heart.The bark is not good to eat, and you should remove it with a paring knife, leaving the heart of the stem, which is good to eat.ere we were going to need sliced artichokes, and trimmed the stem of the artichoke leaving about an inch (2.5 cm) below the petals.
Si is the short form for Silicon and silicon is not a metal. Si is the short form for Silicon and silicon is not a metal.
Silicon forms giant covalent molecules in which each Si atom is covalently bonded to 4 other. Si atoms. Covalent bonds are strong (comparable to metallic bonds) and as each Si atom. forms 4 of them all 4 bonds must be broken to separate the atoms and Si has a very high b.p.,