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प्रश्न
How does the electronic configuration of an atom relate to its position in the Modern Periodic Table?
उत्तर १
In the modern periodic table, atoms with similar electronic configurations are placed in the same column. In a group, the number of valence electrons remains the same. Elements across a period show an increase in the number of valence electrons.
उत्तर २
The elements are arranged in an increasing order of atomic number, and it helps in arranging the elements according to their electronic configuration. Since elements having the same number of valence electrons show similar chemical properties, they are placed under the same group.
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संबंधित प्रश्न
Write the names given to the vertical columns and horizontal rows in the Modern Periodic Table. How does the metallic character of elements vary on moving down a vertical column? How does the size of atomic radius vary on moving left to right in a horizontal row? Give reason in support of your answer in the above two cases.
What is the name of those elements which divide metals and non-metals in the periodic table?
The atomic numbers of four elements P, Q, R and S are 6, 8, 14 and 16 respectively. Out of these, the element known as metalloid is:
(a) P
(b) Q
(c) R
(d) S
How would the tendency to gain electrons change on moving from left to right in a period of the periodic table?
What do you understand by typical elements?
Answer the following in respect of element `31/15 P`
Give its electronic configuration
What is the number of elements in the 3rd period, of the modern periodic table?
Give the chemical formula of magnesium nitrate
The arrangement of elements in the Modem Periodic Table is based on their ______
Match the atomic number with the following:
A rare gas.
