Read the following paragraph and answer the questions given below: In the Modem Periodic table, the elements are arranged in the increasing order of their atomic numbers . Thi s 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 Peroidic table, each column is called a group and each row is called a period. Elements within the same group show similarity and ggradation in properties. This is due to the same number of electrons in the outermost shell. What is the number of valence electrons in an element of group 1 and group 18 respectively?

Read the following paragraph and answer the questions given below: In

1.	Read the following paragraph and answer the questions given below: In the Modem Periodic table, the elements are arranged in the increasing order of their atomic numbers . Thi s 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 Peroidic table, each column is called a group and each row is called a period. Elements within the same group show similarity and ggradation in properties. This is due to the same number of electrons in the outermost shell. What is the number of valence electrons in an element of group 1 and group 18 respectively?
Answer» Solution :The number of VALENCE ELECTRONS in an ELEMENT of GROUP 1 is 1 and the number of valence electrons in an element of group 18 is 8.