Question

write about modern periodic table brefly​

Answer 1

Answer:

The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. ... The seven rows of the table, called periods, generally have metals on the left and nonmetals on the right.

Answer 2

• The modern periodic table is used to organize all the known elements. Elements are arranged in the table by increasing atomic number. In the modern periodic table, each element is represented by its chemical symbol. ... Columns of the periodic table are called groups. Elements in the same group have similar properties.

• Mendeleev, who first published his periodic table in 1869 (Figure 3.2. 1), is usually credited with the origin of the modern periodic table

• To summarize, the periodic table is important because it is organized to provide a great deal of information about elements and how they relate to one another in one easy-to-use reference. The table can be used to predict the properties of elements, even those that have not yet been discovered......

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