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Science TNSB Mentoring
Class 10 Crash course
Periodic classification of elements
Periodic trends and metallurgy
4.
Features of periods and groups
Question:
1
m.
Identify the correct answer for the given question from the options:
Assertion (A):
Period \(6\) is the longest period in the periodic table.
Reason (R):
It contains \(32\) elements, including the lanthanides.
Both A and R are true, and R is not the correct explanation of A
A is true but R is false
Both A and R are true, and R is the correct explanation of A
A is false but R is true
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