Modem Periodic Law and Present Form of the Periodic Table (s, p. d and f block elements,...) NEET Questions

Inorganic Chemistry - Classification of Elements and Periodicity in Properties

Modem Periodic Law and Present Form of the Periodic Table (s, p. d and f block elements,...) MCQ Questions


1.
Which of the following has the smallest atomic radius?

NEET - 2016

A.
Li
B.
B
C.
C
D.
N
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ANSWER :
C. C
2.
The maximum number of elements in the 4th period is:
A.
18
B.
8
C.
32
D.
2
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ANSWER :
A. 18
3.
Which of the following elements has the largest atomic size?
A.
Li
B.
Na
C.
K
D.
C
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ANSWER :
C. K
4.
Which block contains elements with partially filled d-orbitals?
A.
s
B.
p
C.
d
D.
f
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ANSWER :
C. d
5.
Atomic radius decreases across a period due to:

NEET - 2018

A.
Increasing shielding
B.
Increase in energy levels
C.
Increasing nuclear charge
D.
Decrease in energy levels
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ANSWER :
C. Increasing nuclear charge
6.
Which of the following has the most negative electron gain enthalpy?
A.
O
B.
F
C.
Cl
D.
Br
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ANSWER :
C. Cl