Assertion (A): Modern periodic table is known as the long form of the periodic table.
Reason (R) : Modern periodic table consists of seven groups and eighteen periods.
a) Both A and R are correct and R is the correct explanation of A.
b) Both A and R are correct but R is not the correct explanation of A,
c) A is correct, R is incorrect.
d) A is incorrect but Ris correct
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Answer:
'Option c' is the correct answer
- Modern periodic table consists of 18 groups and 7 periods.
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