Given below is a list of elements from the periodic table:
S,Al,C,Ar,Mg,F,O,B
choose from the above list
(a)the most metallic element
(b)the most electronegative element
(c)the element of the period 3 of the periodic table
(d)the element of the group 16 of the periodic table
(e)a noble gas
(a)the most metallic element Mg
Metallic character decreases on moving along the period and increases on going down the group. Mg and Al are both metals and as Mg is from group 2 and Al from group 3 and from the same period, Mg is more metallic.
(b)the most electronegative element F
Electronegativity increases as we move along a group and decreases as we go down the group. As noble gases are inert the topmost element of group 17 is most electronegative.
(c)the element of the period 3 of the periodic table Mg, Al, S Ar
(d)the element of the group 16 of the periodic table O, S
(e)a noble gas Ar
Noble gases belong to the group 18.
Metallic character decreases on moving along the period and increases on going down the group. Mg and Al are both metals and as Mg is from group 2 and Al from group 3 and from the same period, Mg is more metallic.
(b)the most electronegative element F
Electronegativity increases as we move along a group and decreases as we go down the group. As noble gases are inert the topmost element of group 17 is most electronegative.
(c)the element of the period 3 of the periodic table Mg, Al, S Ar
(d)the element of the group 16 of the periodic table O, S
(e)a noble gas Ar
Noble gases belong to the group 18.