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Chemistry GK · Q198

Periodic Classification of elements

Competitive Exams · Chemistry GK · question 198

Q198

How many groups and periods exist in the modern Periodic table?

A.
9 groups, 9 periods
B.
7 groups, 8 periods
C.
18 groups, 7 periods
Answer
D.
8 groups, 7 periods

Answer: Option C

Solution

Answer: Option C
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