Top 10 unbelievable historical concurrencies. A glucocorticoid is a type of steroid hormone which is produced in the cortex of the adrenal gland: cortisol is probably the most well known and common example of a glucocorticoid.
carbon is a special eleme having 4 electron in its outer shell so to complete its octect it needs to share its electron in a covalent bond. carbon is a special eleme having 4 electron in its outer shell so to complete its octect it needs to share its electron in a covalent bond.
Notice that the central boron atom has only 6 electrons in the final Lewis diagram/structure of this molecule. We might conclude from this one example that boron atoms obey a sextet rule. However, boron will form a stable ion with hydrogen, BH4, in which the boron atom does have a complete octet. In addition, BF3 will react with ammonia (NH3), to form a stable compound, NH3BF3, for which a Lewis structure can be drawn that shows boron with a complete octet.