Select the correct option regarding the structure of Modern Periodic Table.

18 Groups and 7 Periods

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7 Groups and 18 Periods

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18 Groups and 9 Periods

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18 Groups and 18 Periods

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Solution

The correct option is A 18 Groups and 7 Periods
According to Modern Periodic Table, the vertical columns are called as groups and horizontal rows are called as periods. It has 18 groups and 7 periods in total.

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Similar questions

(a) State the modern periodic law.

(b) How many periods and groups are there in the modern periodic table?

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