What does the group number indicate in the structure of the atom?
| November 18, 2020 | education
The group of the periodic system of chemical elements is a sequence of atoms with increasing nuclear charge, which have the same electronic structure.
The group number is determined by the number of electrons on the outer shell of the atom (valence electrons) and, as a rule, corresponds to the highest valence of the atom.
That is, the group number indicates the number of electrons in the last level.
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