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Tardigrade
Question
Chemistry
The number of elements present in fifth period of periodic table is :
Q. The number of elements present in fifth period of periodic table is :
1359
140
Classification of Elements and Periodicity in Properties
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A
10
4%
B
8
15%
C
32
10%
D
18
70%
Solution:
Horizontal rows of periodic table are called periods. Modem periodic table has seven periods
