Basic structure of dicotyledonous stem - Sunflower stem. Inner structure of dicotyledonous stem reveals epidermis, cortex and stele. Epidermis. Epidermis is protective in function and creates the outermost layer of the stem. Epidermis is a single layer of parenchymatous rectangular cells. The cells are efficiently arranged with no intercellular spaces.
Best Answer: First, let's start with naming binary ionic compounds. A binary ionic compound has one metal and one nonmetal present in the compound. Let's consider my username (rubidium.chloride) as an example. Rubidium chloride, or RbCl, is a binary ionic compound. The metal here is Rb (rubidium, group 1A) and the nonmetal is Cl (chlorine, group 7A). When you name binary ionic compounds, you mention the cation (positively charged ion) first (usually metals, those elements that appear on the left side of the periodic table have the tendency to form positively-charged ions). Then mention the anion (negatively charged ion). The cation is rubidium (Rb).
NaCl is the formula for sodium chloride. Na is a metal and Cl is a non metal. Ionic bonds are between a metal and a non metal. Therefore, Sodium Chloride (NaCl) is an ionic co â¦ mpound. + 20 others found this useful.