Nickel(Ni)
Name: Nickel
Symbol: Ni
Atomic Number: 28
Number of Protons/Electrons: 28
Number of Neutrons: 31
Classification: Transition Metal
Atomic and physical properties
Nickel is a silvery-white metal with a slight golden tinge that takes a high
polish. It is one of only four elements that are magnetic at or near room
temperature, the others being iron, cobalt and gadolinium. Its Curie temperature is
355 °C, meaning that bulk nickel is non-magnetic above this temperature.
Toxicity
Exposure to nickel metal
Atomic structure:
and soluble compounds should
not exceed 0.05 mg/cm³ in
nickel equivalents per 40-hour
work-week. Nickel sulfide
2,8,16,2
fume and dust are believed to
be carcinogenic, and various
other nickel compounds may
be as well.Nickel carbonyl,
Applications
Nickel is used in many specific
[Ni(CO)4], is an extremely
and recognizable industrial and
toxic gas.
consumer products, including
stainless steel, alnico magnets,
coinage, rechargeable, electric
guitar strings, microphone capsules,
and special alloys. It is also used for
plating and as a green tint in glass.
Nickel is preeminently an alloy
metal, and its chief use is in the
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nickel steels and nickel cast irons, of
which there are many varieties.