According to which phenomenon, "the properties of elements are the periodic function of their atomic number."
Correct answer: E. Modern periodic law
- A. Mendeleev's periodic law
- B. Newland's law of octaves
- C. Dobereiner's triads
- D. Lothar Meyer's classification
- E. Modern periodic law
Explanation
The modern Periodic law can be stated as: "The physical and chemical properties of the elements are periodic functions of their atomic numbers". The atomic number is equal to the number of electrons or protons in a neutral atom.
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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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1,359 free s-Block and p-Block Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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