According to modern periodic law, variations in the properties of elements is related to their:
Correct answer: C. Atomic numbers
- A. Atomic weight
- B. Nuclear weight
- C. Atomic numbers
- D. Neutron-proton ratio
Explanation
The Modern Periodic Law states that the physical and chemical properties of the elements are periodic functions of their atomic numbers. This is the fundamental principle upon which the modern periodic table is organized.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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