Q. 44.4( 9 Votes )

Which of the following statement(s) about the Modern Periodic Table 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 masses.

(iii) Isotopes are placed in adjoining group (s) in the Periodic Table.

(iv) The elements in the Modern Periodic Table are arranged on the basis of their increasing atomic number.
A. (i) only

B. (i), (ii) and (iii)

C. (i), (ii) and (iv)

D. (iv) only


Answer :

Henry Moseley removed defects in earlier periodic tables and stated the modern periodic table. The modern periodic table stated that the properties of elements are periodic functions of their atomic number. The elements are arranged on the basis of their increasing atomic number.

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