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.
Some of the nonmetals are gasses at room temperature, some are solids, one (bromine) is a liquid. Unlike metals, some of the nonmetals exist as distinct molecules. Nonmetals generally form negative ions. Metalloids have properties of both metals and nonmetals and do not fit neatly into either category.They are often lustrous like metals but tend to be brittle like nonmetals. metalloids are classified as semiconductors as they have a moderate ability to conduct heat and electricity. They are solid at room temperature..onmetals generally form negative ions. Metalloids have properties of both metals and nonmetals and do not fit neatly into either category. They are often lustrous like metals but tend to be brittle like nonmetals.