Group 5 element

Group | 5

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Period
4 | 23

5 | 41

6 | 73

7 | 105

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

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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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