Chapter 6.3, Problem 22LC

Interpretation Introduction

Interpretation:

The variation of electronegativity across the period and within the group is to be determined.

Concept Introduction :

The periodic table is a columnar structure that organizes different elements into groups based on how they behave. The elements in the periodic table of today are ordered according to the periodic law. The elements are organized in the modern periodic table in increasing order of their atomic number. When elements are arranged in increasing order of atomic number, periodic trends are observed in certain properties.

Answer to Problem 22LC

The first ionization energydecreases down the group while increasing across the period.

Explanation of Solution

Periodic trends are patterns found in the periodic table that show several facets of a particular element.A periodic trend is observed in electronegativity also.

In general, electronegativity increases across the period or from left to right whereas electronegativity decreases down the group. As a result, on the periodic table, the most electronegative elements are located on the top right and the least electronegative ones are located on the bottom left.