property
It is classified in iron group in metal of the silver-white. The atomic weight is about 58.69. The crystal lattice that is stability at normal temperature is aspect disposition structure (FCC);, in addition, is weaker than the iron, but the Curie point is 350 degrees Celsius in strong magnetic substance, and is the lowest for iron family elements.
Luster of the silver-white is a certain metal and is hard to be rusted in dry air, but the thing of the form of fine particles can self-ignite in the air and the thin nickel line starts a spark in oxygen and burns. An ionization tendency is slightly bigger than hydrogen, and it dissolves in hydrochloric acid and dilute sulphuric acid slowly and generates a green hydration nickel ion, but the reaction is extremely late. It dissolves in dilute nitric acid having oxygenation immediately and forms passivity of the concentrated nitric acid. I show comparatively strong corrosion resistance for the alkali.
Luster of the silver-white is a certain metal and is hard to be rusted in dry air, but the thing of the form of fine particles can self-ignite in the air and the thin nickel line starts a spark in oxygen and burns. An ionization tendency is slightly bigger than hydrogen, and it dissolves in hydrochloric acid and dilute sulphuric acid slowly and generates a green hydration nickel ion, but the reaction is extremely late. It dissolves in dilute nitric acid having oxygenation immediately and forms passivity of the concentrated nitric acid. I show comparatively strong corrosion resistance for the alkali.