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.
Scandium is considered a transition metal; group 3, period 4 in the periodic table of Mendeleev. Silicon belongs to the 3rd family on the periodic table. Silver (Ag in the periodic table) is part of the Transitional  Metals, which are elements whose atom has a partially filled  d-sub-shell.   Lanthanide. Almost every element has a family.