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Moseley's Law

The elements ...

Question

The elements in modern periodic table are arranged in the increasing order of their _______

A

density

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B

atomic weight

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C

valency

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D

atomic number

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Solution

The correct option is D atomic number
Modern periodic law states that the properties of the elements are periodic function of their atomic numbers. Thus,the elements in the modern periodic table are arranged in the order of their atomic numbers.

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Similar questions

In the modern periodic table, the elements are arranged on the basis of their increasing:

Q. Which of the following statement(s) about the Modern periodic table is/are incorrect?
(i) The elements in the Modern periodic table are arranged on the basis of their decreasing atomic number.
(ii) The elements in the Modern periodic table are arranged on the basis of their increasing atomic number
(iii) Isotopes are placed in an adjoining group(s) in the periodic table.

Q. In modern periodic table, arrange the third row elements Na, Mg, AI and Si in the increasing order of their atomic size.

Q. True or False
In Mendeleev's periodic table, elements are arranged in an increasing order of their atomic number.

Q. Which of the following statement is correct in regard to the classification of elements?

(a) Elements in modern periodic table are arranged on the basis of increasing atomic masses.
(b) Elements in Mendeleev's periodic table are arranged on the basis of increasing atomic numbers.
(c) In modern periodic table, the element nickel of lower atomic mass is kept before the element cobalt of higher atomic mass.
(d) In modern periodic table, the isotopes of chlorine having different atomic masses are kept in the same group.

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