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Q.

Periodic law, “Properties of elements are periodic functions of their atomic masses”, was given by

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a

Newlands

b

Mendeleev

c

Dobereiner

d

H.Moseley

answer is C.

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Detailed Solution

Dobereiner is classification of elements is based on average atomic mass

Newland is classification of eliments is based on musical notes

Mendeleev is classification of elements is based on atomic mass

Moseley is classification of elements is based on atomic number and electronic configurations

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