Nickel (Ni) has atomic number 28 and is classified as a transition metal. It sits in Group 10, period 4 of the periodic table. Its practical relevance includes stainless steels, superalloys, batteries, plating, catalysts and corrosion-resistant equipment.
ELEMENT DATA
Quick facts
#Atomic number28
AaSymbolNi Relative
◉Atomic mass58.6934 State at room temperature Solid
⌘Group10
Position in the periodic table
Transition metals occupy the d-block and are central to structural alloys, catalysis, electrical systems and high-temperature engineering. Many display multiple oxidation states and form useful intermetallics or complex alloys.
Nickel belongs to period 4. Its position helps explain recurring trends such as atomic size, bonding behavior, oxidation states and the way it interacts with neighboring elements.
Why Nickel matters
In engineering and technology, nickel is associated with stainless steels, superalloys, batteries, plating, catalysts and corrosion-resistant equipment. The importance of the element may come from the pure element itself, from compounds containing it, or from its role as an alloying, electronic, catalytic or nuclear material.
Engineering and scientific context
Material behavior should never be inferred from the element name alone. Purity, isotope composition, crystal structure, processing history, temperature and the surrounding chemical environment can all change performance. In alloys and compounds, the contribution of nickel depends on concentration and interaction with the other constituents.
Safety and handling
The hazards associated with Nickel depend on its physical form, purity, compounds, process temperature and exposure route. Engineering decisions should use the applicable safety data sheet and project-specific risk assessment.
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