Interpretation: The correct statements about the periodic table are to be selected.
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
Answer to Problem 110A
All statements are correct.
Option (c)
Explanation of Solution
Henry Moseley put forth the modern periodic law in 1913. The physical and chemical characteristics of the elements are periodic functions of their atomic numbers, according to the modern periodic law. Thus, the elements are organized in the modern periodic table in increasing order of their atomic number. Thus, statement I is correct.
Elements are arranged in vertical and horizontal columns. The horizontal rows are periods and the vertical columns are groups. Thus, statement II is correct.
Metals are on the left side while non-metals are on the right side. Thus, statement III is also correct.
Thus, option (c) is correct.
Chapter 8 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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