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प्रश्न
What are the advantages of the periodic table?
उत्तर
Advantages of the periodic table:
(i) The study of elements and its properties is made easy.
(ii) By knowing the position of the element in the periodic table, prediction of the type of compounds that the elements form becomes easy.
(iii) The study of chemistry has been made easy in schools and colleges by using the periodic table chart as a teaching-aid.
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संबंधित प्रश्न
Compare and contrast the arrangement of elements in Mendeleev’s periodic Table and the Modern Periodic Table.
How would the tendency to lose electrons change as we go from left to right across a period of the periodic table?
How does the chemical reactivity of alkali metals vary on going in group 1 of the periodic table?
From the standpoint of atomic structure, what determines which element will be the first and which the last in a period the periodic table?
Name two elements in Inert gas.
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)?
Give the chemical formula of sodium hydroxide
Compare the radii of two species X and Y. Give reasons for your answer.
- X has 12 protons and 12 electrons
- Y has 12 protons and 10 electrons
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 variable valency and is a member of the Oxygen family (group 16).
1H2 is an isotope of hydrogen. In the modern Periodic Table it will ______.
