English, asked by anadikedia3, 10 months ago

in modern periodic table there are How many periods​

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Answered by jiya551400
3

Answer:

seven periods

A period is a horizontal row of the periodic table. 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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Answered by Anonymous
8

Hi User

There are 7 Periods

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