Advertisements
Advertisements
प्रश्न
How does the property vary in periods and in groups?
Advertisements
उत्तर
Along the period, from left to right in the periodic table the electronegativity increases because of the increase in the nuclear charge which in turn attracts the electrons more strongly. On moving down a group, the electronegativity of the elements decreases because of the increased number of energy levels.
APPEARS IN
संबंधित प्रश्न
State modern periodic law.
How were the positions of cobalt and nickel resolved in the modern periodic table?
Is it possible to have an element having atomic number 1.5 placed between hydrogen and helium?
On the basis of electronic configuration, how will you identify the first element of a period?
What are the periods in a periodic table? Give two characteristics of each.
Answer the following in respect of element `31/15 P `
To which group and period does it belong?
Give the chemical formula of carbonic acid
State the number of elements in Period 3 of the Periodic Table.
State whether true or false. If false, correct the statement.
Lanthanides and actinides are kept at the bottom of the periodic table because they resemble each other but they do not resemble with any other group elements.
Which of the following elements does not lose an electron easily?
