Question

Describe the important features of modern periodic table

Answer 1

Answer:

Main features:

Each column is called a group. All elements in a group have similar chemical and physical properties because they have the same number of outer electrons. Periods - In periodic table elements are arranged in a series of rows. Elements of the same period have the same number of electron shells.

Answer 2

Answer:

Main features:

Each column is called a group. All elements in a group have similar chemical and physical properties because they have the same number of outer electrons. Periods - In periodic table elements are arranged in a series of rows. Elements of the same period have the same number of electron shells.