<P> Vanadium is named for Vanadis, the Scandinavian goddess of love . Niobium is named for Niobe, a figure from Greek mythology . Tantalum is named for Tantalus, a figure from Greek mythology . Dubnium is named for Dubna, Russia, where it was discovered . </P> <P> There are 160 parts per million of vanadium in the earth's crust, making it the 19th most abundant element there . Soil contains on average 100 parts per million of vanadium, and seawater contains 1.5 parts per billion of vanadium . A typical human contains 285 parts per billion of vanadium . Over 60 vanadium ores are known, including vanadinite, patronite, and carnotite . </P> <P> There are 20 parts per million of niobium in the earth's crust, making it the 33rd most abundant element there . Soil contains on average 24 parts per million of niobium, and seawater contains 900 parts per quadrillion of niobium . A typical human contains 21 parts per billion of niobium . Niobium is in the minerals columbite and pyrochlore . </P> <P> There are 2 parts per million of tantalum in the earth's crust, making it the 51st most abundant element there . Soil contains on average 1 to 2 parts per billion of tantalum, and seawater contains 2 parts per trillion of tantalum . A typical human contains 2.9 parts per billion of tantalum . Tantalum is found in the minerals tantalite and pyrochlore . </P>

Which of the following elements is a group 5b (or group 5) element