Group 5 Element - Wikidoc

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Group 5
Period
4 23 V 
5 41 Nb 
6 73 Ta 
7 105 Db 

A Group 5 element is one in the series of elements in group 5 (IUPAC style) in the periodic table, which consists of vanadium (V), niobium (Nb), tantalum (Ta), and dubnium (Db).

All of these elements are classed in Group 5 because their valence shell holds five electrons. Dubnium can only be produced in the laboratory, and does not exist in nature.

Biological occurrences

Of the group 5 elements, only vanadium has been identified as playing a role in the biological chemistry of living systems: it is involved in some of the enzymes of higher organisms, and also, unusually, in the biochemistry of some marine tunicates.

Explanation of periodic table slice on right: Transition metals atomic number in black are solids solid borders are older than the Earth (Primordial elements) dotted borders are made artificially (Synthetic elements)

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