Answer:
The columns of the periodic table are called groups. Members of the same group in the table have the same number of electrons in the outermost shells of their atoms and form bonds of the same type. The horizontal rows are called periods.
Other answers
There are multiple ways of grouping the elements, but they are commonly divided into metals, semimetals (metalloids), and nonmetals. You'll find more specific groups, like transition metals, rare earth, alkali metals, alkaline earth, halogens, and noble gasses.
Explanation:
Brainly PLS 〒▽〒
