Is the number of valence electrons same for all these elements?

Answer the following questions: Observe the following diagram and write the answer the following questions: Write the number of valence electrons of the elements in the halogen group.

Observe the following diagram and write the answers of the following question Write the number of valence electrons of the elements in the halogen group.

What are the valence electrons?

What is the number of valence electrons in an element of group 1 and group 18 respectively?

When the number of the valence electrons in an element 'x' is 4 or more than 4, does '(8-x)' matches with the valency of that element ? How many electrons are used to complete the octet ?

Find out the number of valence electrons and valency of the atoms represented in the following figures.

Find out the number of valence electrons and valency of the atoms represented in the following figures.

A part of periodic table is shown in the adjacent figure. a. Write the symbol of the element 'B'. b. Will elements 'C' and 'D' have same number of valence electrons? c. Arrange elements 'A', 'B' and 'C' in increasing order of their metallic character. d. What is the number of electrons in L shell of element 'E'? e. Name any two elements that will have properties similar to that of element 'A'

The number of valence electrons in carbon is …………. .