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Subjects
Science CBSE
Class 10
Periodic classification of elements
Textbook based HOTS
38.
Multiple Choice Question Answer XXXVIII
Exercise condition:
2
m.
1.
Which of the following pairs of elements belong to the same period of the periodic table ?
N, Ar
C, Mg
K, Cu
Ca, CI
2.
The number of elements in the 4th period of periodic table are -
10
18
32
8
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