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प्रश्न
What are horizontal rows and vertical columns in a periodic table known as?
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उत्तर
The horizontal rows are known as periods and vertical columns in the periodic table are known as groups.
संबंधित प्रश्न
State modern periodic law.
where should hydrogen be placed in the modern periodic table? Give reason for your answer.
What is the major characteristic of the first elements in the periods of the periodic table? What is the general name of such elements?
State how the valency of elements varies in a period of the periodic table?
What is the usual number of valence electrons and valency of group 18 elements of the periodic table?
What are the merits of the modern periodic table of elements?
An element barium has the atomic number 56. Look up its position in the periodic table and answer the following question.
Is it larger or smaller than caesium (Cs)?
State the main aim of classifying elements. Which is the more fundamental property of elements that is used in the development of Modern Periodic Table? Name and state the law based on this fundamental property. On which side of the periodic table one can find metals, non-metals and metalloids?
______ forms the basis of the modern periodic table.
Choose an element from period 3 of modern periodic table that matches the description given below in instance. Give a reason for your choice.
It has a similar structure to diamond.
