Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 35

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An element has an atomic number $37$ . The block and group of this element are respectively:

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Important Questions on Classification of Elements and Periodicity in Properties

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 36

The atomic number of

Ag

is

47 .

In the same group, the atomic numbers of elements placed above and below

Ag

in the long form of the periodic table will be:

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 37

Which of the following statements is not correct regarding hydrogen:

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 38

In modern periodic table, the element with atomic number

Z = 118

will be:

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 39

First

IE

of

5 d

series elements are higher than those of

3 d

and

4 d

series elements. This is due to:

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 40

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 Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 41

Which of the following is generally true regarding the effective nuclear charge

(Z_{eff})

:

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 42

From the given set of species, point out the species from each set having the highest

Z_{eff}

:

(a)

O^{2 -}, F^{-}, {Na}^{+}

(b)

Li, Be, C

(c)

He, {Li}^{+}, H^{-}

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Alpha Question Bank for Medical: Chemistry>Chapter 12 - Classification of Elements and Periodicity in Properties>Exercise 1>Q 43

The set representing the correct order of the first ionisation potential is