Medical Definition of Contraceptive, pill. Contraceptive, pill: Commonly called the pill, combined oral contraceptives are the most commonly used form of reversible birth control in the United States. This form of birth control suppresses ovulation (the monthly release of an egg from the ovaries) by the combined actions of the hormones estrogen and progestin. If a woman remembers to take the pill every day as directed, she has an extremely low chance of becoming pregnant in a year.
Silicon is a chemical element with symbol Si and atomic number 14. A hard and brittle crystalline solid with a blue-gray metallic luster, it is a tetravalent metalloid. It is a member of group 14 in the periodic table, along with carbon above it and germanium, tin, lead, and flerovium below.
The molecular formula for Silicon is Si. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Silicon, or 28.0855 grams. Note that rounding errors may occur, so always check the results.Use this page to learn how to convert between moles Silicon and gram.he molecular formula for Silicon is Si. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Silicon, or 28.0855 grams. Note that rounding errors may occur, so always check the results.