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The Periodic Table of Mendeleev has 18 groups and 7 periods.

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Q: How many periods of elements are there?
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Related questions

How many elements are in periods 6?

there are 32 elements in period 6.


How many elements are in periods 4?

There are 18 elements in period 4.


How many representative elements are in the sixth periods?

18


How many peroids are in the periodic table of elements?

There are 18 periods in the periodic table. The periods are divided according to the chemical properties of elements. Elements in a group have similar properties.


How many elements occur in each of the first three periods or the periodic table?

There are 2 elements in the first period, 8, 8 elements in 2nd and 3rd periods respectively,


Why are the elements on the periodic tables separated into periods?

Periods are types of elements.


How many periods in the periodic table of elements?

there are 7 periods in the periodic table118


How many periods and groups are on the modern periodic table?

7 periods and 18 groups are there on the modern periodic table.


What are horizontal rows of elements in the periodic table?

The horizontal rows of elements in the periodic table are called periods.


How many periods does Periodic table contain?

There are a total of 18 groups on The Periodic Table of Elements.


Why some of the periods have different numbers of elements?

The early periods have less elements because they are filling up energy levels which hold only a few electrons. The later periods contain elements with electrons in levels with a greater capacity.


What are periods on the periodic table of elements?

The Periods are the horizontal rows on the periodic table.