s-Block ElementsHard
Question
The first ionisation energies of alkaline earth metal are higher than those of the alkali metals. This is because:
Options
A.there is increase in the nuclear charge of the alkaline earth metal
B.there is decrease in the nuclear charge of the alkaline earth metal
C.there is no change in the nuclear charge
D.none of these
Solution
Along the period from left to right, atomic number increases and, therefore, nuclear charge also increases. So first ionization energy of alkaline earth metals are higher than those of the alkali metals of the same period because of higher nuclear charge.
Create a free account to view solution
View Solution FreeMore s-Block Elements Questions
Which of the following statement is incorrect ?...The pair whose both species are used in antacid medicinal preparations is :...Setting of plaster of paris involves :...Nitrolium is :...The more commonly used baking powder contains about 30% NaHCO3, 20% NaAl(SO4)2 10% Ca(H2PO4)2 and 40% starch. Which of t...