A. Oxidation number
B. Atomic number
C. Mass number
D. Number of neutrons
Correct Answer:
Option B – Atomic number
Explanation
Elements are arranged in order of increasing atomic number
A. Oxidation number
B. Atomic number
C. Mass number
D. Number of neutrons
Correct Answer:
Option B – Atomic number
Explanation
Elements are arranged in order of increasing atomic number
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