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Question

State whether the following statements are true of false:

(a) Newlands divided the elements into horizontal rows of eight elements each.
(b) According to Mendeleev's periodic law, the properties of elements are a periodic function of their atomic numbers.
(c) The elements in a group have consecutive atomic numbers.

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Solution

(a) False
Newlands divided the elements into horizontal rows of seven elements each.

(b) False
According to Mendeleev's periodic law, the properties of elements are a periodic function of their atomic masses.

(c) False
The elements in a period have consecutive atomic numbers.

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