Question

a) What property do all elements in the same column of the Periodic Table as boron have in common?
b) What property do all elements in the same column of the Periodic Table as fluorine have in common?

Answer 1

The periodic table is a tabular display of the chemical elements in which elements are arranged according to their atomic number, electron configuration and recurring chemical properties.

Complete step by step answer:
Table consists of seven rows of the table which are called periods which generally have metals on the left and nonmetals on the right. There are 18 columns in the periodic table which are known by groups containing elements with similar chemical behaviors.
a) What property do all elements in the same column of the Periodic Table as boron have in common?
Boron element is the member of group 13 and shown by B having atomic number 5. The electronic configuration shown by $B$ is $1{{s}^{2}}2{{s}^{2}}2{{p}^{1}}$. The other elements of this group are $Al,Ga,In,Tl,Nh$and the common thing in this column is they all have the same valence electrons i.e. all the elements of this group have 3 valence electrons.
b) What property do all elements in the same column of the Periodic Table as fluorine have in common?
Fluorine is an element of group 17, elements of these groups are known by halogens all other elements of this group are $Cl,Br,I,At,Ts$. Fluorine is represented by $F$ having atomic number 9 and electronic configuration is shown by $1{{s}^{2}}2{{s}^{2}}2{{p}^{5}}$. All the metals present in this group are non-metals and are highly electronegative in nature. All elements have seven valence electrons and easily accept one electron to complete their octet and are known by halogens.

Note: There are 118 elements present in the periodic table and on the basis of their electronic configuration it is divided into 4 block elements which s-block, p-block, d-block and f-block elements. F-block elements are generally shown by two lines below the periodic table; these are known as lanthanides and actinides.