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CBSE Notes 2011-2012

Which of the following statement(s) about the Modern Periodic Table are incorrect ? (a) The elements...

Multiple choice question

Which of the following statement(s) about the Modern
Periodic Table are incorrect ?
(a) The elements in the Modern Periodic Table are
arranged on the basis of their decreasing atomic
number.
(b)The elements in the Modern Periodic Tabic are
arranged on the basis of their increasing atomic
masses.
(c)Isotopes are placed in adjoining group(s) in the
Periodic Table.
(d)The elements in the Modern Periodic Table are
arranged on the basis of their increasing atomic
number.

unknown

(i) only

unknown

(i), (ii) and (iii)

unknown

(i), (ii) and (iv)

unknown

(iv) only