Question

Give any 6 points{brief} explaining the structure of the Modern Periodic Table.

Answer 1

Answer:

(1).In the modern periodic table, the elements are arranged in the order of their inreasing atomic number. In the modern periodic table there are seven horizontal rows called periods and eighteen vertical columns (1 to 18) called groups.

(2) The arrangement of the periods and groups results into formation of boxes. Atomic numbers are serially indicated in the upper part of these boxes. Each box represents the place for one element. Apart from these seven rows. there are two rows of elements placed separately at teh bottom of the periodic table.

(3) They are lantanides and actinides series. There are 118 places for elements in the modern periodic table. The formation of a few elements was established experimentally very recently and thereby the modern periodic table is now completely filled with 118 elements.

(4) On the basis of the electronic configuration, the elements iin the modern periodic table are divided into four blocks, viz. s-block, p-block, d-block and f-block. The s-block constitue groups 1 and 2 . The groups 13 to 18 constitute the p-block.

(5) Groups 3 to 12 constitute teh d-block, while the lanthanide and actinide series at the elements. A zig-zag line is shown in the p-block of the periodic table. This zig-zag line shows the three traditional types of elements. i.e, metals, nonmetals and metalloidsl.

(6) The metalloid elements lie along the border of zig-zag line. All the metals lie on the left side of the zig-zag line while all the nonmetals lie on the right side.

Explanation:

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Answer 2

MODERN PERIODIC TABLE

1. In the modern periodic table, the elements are arranged in the order of their increasing atomic number. In modern periodic table, there are 7 horizontal rows called groups and 18 vertical columns (1 to 18) called groups.

2. The arrangement of the periods and groups result into the formation of boxes. Atomic numbers are serially indicated in the upper part of these boxes.

3. Each box represents the place for one element. Apart from these seven rows, there are two rows of elements placed separately at teh bottom of the periodic table. They are lantanides and actinides series.

4. There are 118 places for elements in the modern periodic table. The formation of a few elements was established experimentally very recently and thereby the modern periodic table is now completely filled with 118 elements.

5. On the basis of the electronic configuration, the elements iin the modern periodic table are divided into four blocks, viz. s-block, p-block, d-block and f-block. The s-block constitue groups 1 and 2 . The groups 13 to 18 constitute the p-block. Groups 3 to 12 constitute teh d-block, while the lanthanide and actinide series at the elements.

6. A zig-zag line is shown in the p-block of the periodic table. This zig-zag line shows the three traditional types of elements. i.e, metals, nonmetals and metalloidsl.

7. The metalloid elements lie along the border of zig-zag line. All the metals lie on the left side of the zig-zag line while all the nonmetals lie on the right side.

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