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Select the incorrect statement about modern periodic table (memory based jee mains shift-1 24/01/2025)

Q1

Select the incorrect statement about modern periodic table (memory based jee mains shift-1 24/01/2025)

a

Physical and chemical properties are based on their atomic weight

b

Physical and chemical properties are based on their atomic number

c

Non-metallic elements are lesser in number than metallic elements

d

In periodic table, 18 groups are present

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