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Name the Period Which is the Shortest Period of the Periodic Table.

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प्रश्न

Name the period which is the shortest period of the periodic table.

एक पंक्ति में उत्तर
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उत्तर

The shortest period is period 1 of the periodic table.

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अध्याय 5: The Periodic Table - Additional Questions

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विराफ जे दलाल Simplified ICSE Chemistry [English] Class 9
अध्याय 5 The Periodic Table
Additional Questions | Q 13.1

संबंधित प्रश्न

The electrons in the atoms of four elements A, B, C and D are distributed in three shells having 1, 3, 5 and 7 electrons in the outermost shell respectively. State the period in which these elements can be placed in  the modern periodic table. Write the electronic configuration of the atoms of A and D and the molecular formula of the compound formed when A and D combine.


Why do elements in the same group show similar properties but the elements in different groups show different properties?


The elements A, B, C, D and E have atomic numbers 9, 11, 17, 12 and 13 respectively. The pair of elements which belongs to the same group of the periodic table is:

(a) A and B
(b) B and D
(c) A and C
(d) D and E


Name two properties of elements whose magnitudes change when going from top to bottom in a group of the periodic table. In what manner do they change?


The elements of one short period of the periodic table are given below in order from left to right: 

Li Be B C O F Ne

One element of this period is missing. Which is the missing element and where should it be placed? 


An element belongs to the third period and Group IIIA (13) of the periodic table. State: the valency,


Going across a period left to right, atomic size _____.


Name the elements in Period 1.


Name or state following with reference to the element of the first three periods of the periodic table.

A covalent compound formed between an element in period 1 and a halogen.


There are three elements E, F, G with atomic numbers 19, 8 and 17 respectively.

Classify the above elements as metals and non-metals.


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