Distinguish between:
Groups and periods of Modern periodic Table

Distinguish between: Mendeleev's periodic table and Modern periodic table

How many groups are present in modern periodic table

How many groups are there in the modern periodic table?

State modern periodic law.

State whether the following statement is True' or False'. If false, write the correct statement for the same. As we move from left to right in a period of Moderns periodic table,atomic size of the elements gradually increases .

In the modern periodic table, the elements are arranged in the increasing order of their atomic number. This arrangement is based on the modern periodic law, which states that the properties of elements are a periodic function of their atomic numbers. In the modern periodic table, each column is called a group and each row is called a period. Elements within the same group show similarity and gradation in properties. This is due to the same number of electroms in the outermost shell . Based on the above paragraph, answer the following question: How many groups are there in the modern periodic table?

Answer the following questions: Considering the elements of period 3 in the modern periodic table, answer the following questions : State the most electronegative element in this period.

State whether the following statement is True' or False'. If false, write the correct statement for the same. Group 1 elements in Modern periodic table are refered as"alkali metals"

Which is the incomplete period in the Moders periodic table?