Current location - Training Enrollment Network - Mathematics courses - Is the nature of chemical elements a periodic phenomenon (urgent mathematical problem)
Is the nature of chemical elements a periodic phenomenon (urgent mathematical problem)
The periodic law of elements refers to the law that the properties of elements change periodically with the increase of the atomic number of elements (that is, the number of electrons outside the nucleus or the number of nuclear charges). The discovery of periodic law is an important milestone in the process of chemical systematization.

Does not mean periodic changes in chemical properties.