How many periods are there in modern periodic table?

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Seven periods

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Seven periods..

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There are seven periods.. friend.
Hope this helps.Plzz upvote and support.

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In a modern periodic table there are 7 periods and 18 groups.

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7 periods and 8 groups
dont get confused

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# 7 #is the answer..

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Seven...

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7

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There are seven periods in the periodic table, with each one beginning at the far left. A new period begins when a new principal energy level begins filling with electrons. Period 1 has only two elements (hydrogen and helium), while periods 2 and 3 have 8 elements.

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There are 7 periods in modern periodic table

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There are seven periods in modern periodic table

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7 periods and 8 groups

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There are 7 periods .

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7 peroid.

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Abhi toh 22 vi sadi chal rahi hai na i think

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7 periods in the modern periodic table

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Seven preriods are there in modern periodic table.

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7 periods and 18 groups

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7 PERIODS..

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There are 18 groups and 7 periods in the modern periodic table.

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There are seven periods in periodic table

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7..period

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There are currently seven complete periods in the periodic table, comprising the 118 known elements.

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7 period!!

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7  periods are there in modern periodic table.

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Seven periods .!

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7 periods and 18 groups...

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7 periods.

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7periods

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7 period

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It's 7 ($EVEN) periods.

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7..

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Seven

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There are 7 periods in modern periodic table.

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There are seven period in modern periodic table

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7 periods and 18 groups

..!!

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7 periods .....
18 groups ...

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7 periods are there

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7 periods....

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How many periods are there in modern periodic table?

Explanation

The modern periodic table is a tabular arrangement of chemical elements based on their atomic number, electron configurations, and chemical properties. The table is arranged in rows and columns, and the rows are called periods. There are a total of seven periods in the modern periodic table, each representing the energy level of the elements in that particular row.

Periods in the Modern Periodic Table

First Period: This period contains only two elements, hydrogen and helium. Both these elements have only one energy level.

Second Period: This period contains eight elements, starting from lithium and ending with neon. All the elements in this period have two energy levels.

Third Period: This period contains eight elements, starting from sodium and ending with argon. All the elements in this period have three energy levels.

Fourth Period: This period contains 18 elements, starting from potassium and ending with krypton. All the elements in this period have four energy levels.

Fifth Period: This period contains 18 elements, starting from rubidium and ending with xenon. All the elements in this period have five energy levels.

Sixth Period: This period contains 32 elements, starting from cesium and ending with radon. All the elements in this period have six energy levels.

Seventh Period: This period is incomplete and contains elements from francium to oganesson. All the elements in this period have seven energy levels.

It is important to note that the number of elements in each period increases as we move down the table, and the elements in each period have similar chemical and physical properties due to their similar electron configurations.

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Seven  periods

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7 periods

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There are 7 period in modern periodic table

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seven periods

There are seven periods in the periodic table, with each one beginning at the far left. A new period begins when a new principal energy level begins filling with electrons. Period 1 has only two elements (hydrogen and helium), while periods 2 and 3 have 8 elements.

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Modern Periodic Table

https://edurev.in/studytube/modern-periodic-table/c7a2578e-6c36-4331-a967-37cf118746cf_v

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The Modern Periodic Table

https://edurev.in/studytube/the-modern-periodic-table/4e577f5d-f1bd-40c3-b944-e746d48b1029_t

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Seven 7

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7 period
18 group.

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Stand 7period and 18 other doun

Similar Class 10 Doubts

How many groups and periods are present in the modern periodic table?

What are the similarities between Mendeleev's periodic table and modern periodic table?

Write the number of periods and groups present in the modern periodic table. State the changes in valency and metallic character of elements as we move from left to right in a period. Also state the changes, if any, in the valency and atomic size of elements as we go down a group ?

Guys plzz tell difference between modern periodic table n mendel's periodic table?

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