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Periods in periodic table refers to rows.Each row element has its specific characteristics.There are 7 rows in a periodic table.

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How many periods are on the periodic tables?

7The Periodic Table has 7 periods and 18 groups.


What are the horizontal groups of the periodic tables called?

the horizontal rows (not groups) are known as periods.


What are periods in the periodic table mean?

Periods are horizontal rows. 7 periods are present in modern periodic table.


What are periods for periodic tables?

a Periodic Table organises the different elements, according to the atoms' mass, type, properties, reactivity etc. See the question about: periodic table patterns


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

The elements on the periodic table are separated into periods based on the number of electron shells they have. Elements in the same period have the same number of electron shells, which influences their chemical properties and reactivity.


Why are periodic tables called that?

Because the elements that have similar properties are arranged in groups - or 'periods'.


Most modern periodic tables arrange elements by atomic number into seven horizontal rows called?

The horizontal rows are called periods, there are 7. The vertical rows are groups and there are 18.


Are periods horizontal rows on the periodic table?

rows. the vertical columns are called periods


What are characteristics of periods in the periodic table?

Periods have same shells. There are 7 periods in periodic table.


How many periods are in the periodic table.?

there are 7 periods in the periodic table118


Why are the rows or periods different colors in the periodic table?

answer this question what do you mean i donot no


What is the Number of periods on the periodic table?

The periodic table has 7 periods and 18 groups. The periods are in a horizontal line and the groups are in a straight line like up to down.