the periodic in the modern periodic table .
a)5
b) 6
c) 7
d) 8
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(a) 5
Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence. Scientific methodology includes the following: Objective observation: Measurement and data (possibly although not necessarily using mathematics as a tool) Evidence.
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Answer:
Number of periods in modern periodic table are 7
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