Question
Question: In the modern long form of periodic table, elements are arranged in the increasing order of...
In the modern long form of periodic table, elements are arranged in the increasing order of
A
Atomic mass
B
Atomic number
C
Mass number
D
Metallic character
Answer
Atomic number
Explanation
Solution
: Modern periodic law may be stated that the physical and chemical properties of elements are the periodic functions of their atomic numbers. Elements are arranged according to increasing atomic number.