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CBSE Notes 2011-2012 » X-Science-Term2

Periodic Classification of Elements

On moving from left to right in a period in the periodic table, the size of the atom

Multiple choice question

On moving from left to right in a period in the periodic
table, the size of the atom

Which of the following set of elements is written in order of their increasing metallic character ?

Multiple choice question

Which of the following set of elements is written in order
of their increasing metallic character ?

In Mendeleev's Periodic Table, gaps were left for the elements to be discovered later. Which of the ...

Multiple choice question

In Mendeleev's Periodic Table, gaps were left for the
elements to be discovered later. Which of the following
elements found a place in the periodic table later ?

What type of oxide would Eka-aluminium form ?

Multiple choice question

What type of oxide would Eka-aluminium form ?

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.

Three elements B, Si and Ge are

Multiple choice question

Three elements B, Si and Ge are

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