Nickel powder, method for manufacturing nickel powder, internal electrode paste using nickel powder, and electronic component

A nickel powder having a spherical particle shape, an average particle diameter of 0.05 μm to 0.3 μm, a crystallite diameter of 30 nm to 80 nm, and an amount of nitrogen of 0.02% by mass or less,

• wherein, when heating a pellet that is formed by pressurizing and molding the nickel powder from 25° C. to 1200° C. in an inert atmosphere or a reducing atmosphere and measuring a thermal shrinkage of the pellet based on a thickness of the pellet at 25° C., a maximum shrinkage temperature that is a temperature at a maximum shrinkage where the thermal shrinkage becomes maximum is 700° C. or more, the maximum shrinkage that is a maximum value of the thermal shrinkage at the maximum shrinkage temperature is 22% or less, and a maximum expansion amount of the pellet from the pellet at the maximum shrinkage based on the thickness of the pellet at 25° C. in a temperature range of the maximum shrinkage temperature or more and 1200° C. or less is 7.5% or less, and
• wherein a CV value indicating a ratio of a standard deviation of particle diameters of the nickel powder to the average particle diameter is 20% or less.