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प्रश्न
Give a reason why elements are tabulated in a table called the ‘Periodic table’.
उत्तर
For arranging all the elements in a systematic and simple manner. The arrangement of elements was done in the form of a table called Periodic Table in which elements are arranged in increasing order of their atomic numbers. Elements in the Periodic Table are arranged in Horizontal rows called Periods and vertical columns called groups. Metallic elements are placed on the left non-metallic on the right and noble gases on the extreme right of the Periodic table.
संबंधित प्रश्न
Define: Elements-
The Latin language name of an element is natrium. The English name of this element is :
State which element exists in the highest percentage in human body.
Give the symbol of the following element:
Potassium
Give the symbol of the following element:
Zinc
State the type of element for the following:
Sulphur
Write the radical of the following valency:
Potassium
Give the qualitative and quantitative meaning of the term ‘symbol’.
Describe the different ways in which we can write the symbols of elements. Give appropriate examples.
Write the constituent elements and their symbols for the following compounds.
- Carbon monoxide
- Washing soda