Which factors are responsible for the increase in metallic character down a group in the periodic table?
Decreasing ionization energy and increasing atomic size
Metallic character depends on how easily an atom loses its outermost electrons to form positive ions.
Moving down a group, additional electron shells increase the atomic size, which weakens the nucleus's hold on the outer electrons.
This reduces the ionization energy, making it easier to remove electrons, which in turn increases the metallic character.
Hence, decreasing ionization energy together with increasing atomic size explains the increase in metallic character down a group.
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Important Questions from Classification of Elements and Periodicity in Properties
- Which one of the following is the correct order of the valencies of elements Ne, Si, N and Mg?
Which one of the following is the most fundamental characteristic is an element?
March List-I with List-II and select the correct answer using the code given below the Lists:
List I
(Element)
List II
(Highest Valency)
A. Sulfur
1. Five
B. Phosphorous
2. Six
C. Lead
3. Two
D. Silver
4. Four
When one strikes a safety match, the first step is
The elements of the groups 3 to 12 are called _______ elements or transition elements.
