Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-1>Q 20

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Atomic number of $Ag$ is $47 .$ In the same group, the atomic numbers of elements placed above and below $Ag$ in Long form of Periodic table will be:

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Important Questions on Classification of Elements and Periodicity in Properties

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-1>Q 21

In modern periodic table, the element with atomic number

Z = 118

will be:

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-1>Q 22

The order of screening effect of electrons of

s, p, d

and

f

orbitals of a given shell of an atom on its outer shell electrons is :

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-1>Q 23

Which of the following is generally true regarding effective nuclear charge

(Z_{eff})

:

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-1>Q 24

Among following species which of them have maximum

Z_{eff} .

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-1>Q 25

From the given set of species, point out the species from each set having highest $Z_{eff}$ .

(a) $O^{2 -}, F^{-}, {Na}^{+}$

(b) $Li, Be, C$

(c) $He, {Li}^{+}, H^{-}$

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-1>Q 26

Which can have both

+ ve

and

- ve

oxidation states in their compounds.

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-1>Q 27

The oxidation state of nitrogen varies from:

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Alpha Question Bank for Engineering: Chemistry>Chapter 13 - Classification of Elements and Periodicity in Properties>Exercise-1>Q 28

Electrons of which subshell do not participate in bonding due to inert pair effect?