Group is used when a central atom has two terminal atoms bonded by single bonds and a terminal atom bonded with two pairs of electrons (a double bond).
With 1,500 vine acres and 17 wineries, this region specializes in many different varieties. See the Wineries. Prosser The birthplace of the Washington wine industry, this quaint little town is home to more than 30 wineries, 12 of which are within walking distance of each other.
Washington ranks second in the United States in the production of wine, behind only California. By 2006, the state had over 31,000 acres (130 km 2) of vineyards, a harvest of 120,000 short tons (109,000 t) of grapes, and exports going to over 40 countries around the world from the 600 wineries located in the state.