Question

explain classification of groups,blocks and periods in modern peridic table​

Answer 1

Answer:

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 group is a vertical column of the periodic table, based on the organization of the outer shell electrons. There are a total of 18 groups.

Answer 2

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 group is a vertical column of the periodic table, based on the organization of the outer shell electrons.

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