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Which of the following Statements are NOT true about the modern periodic table? A. The properties of elements are function of atomic weights. B. The properties of elements are function of atomic numbers. C. Elements having similar outer electronic configuration are arranged in same period. D. An element's location reflects the quantum numbers of the last filled orbital. E. The number of elements in a period is same as the number of atomic orbitals available in energy level that is being filled. Choose the correct answer from the options given below:

1. A, C and E Only
2. D and E Only
3. A and E Only
4. B, C and E Only

Correct answer: A, C and E Only

Solution

Options A, C, and E are incorrect because the modern periodic table is organized primarily by atomic number, not atomic weight (A), elements with similar outer electronic configurations are grouped in the same group, not period (C), and the number of elements in a period corresponds to the number of available orbitals in that energy level, which can vary (E).

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