(a) How is the electronic configuration of an element related to its position in the modern periodic table? Give one example.
(b) Why is nitrogen more electronegative than phosphorus?
Asked by Topperlearning User | 28th May, 2014, 08:35: AM
(a) By the electronic configuration of an element, we can identify the group and period to which the atom belongs.
For example - Oxygen has atomic number 8.
Its electronic configuration is 2, 6.
As it can gain two electrons to complete its octet, so it belongs to group 16. Also, since the electrons are filled in two shells. So, oxygen belongs to the second period.
(b) As we move down the group, electronegativity of elements decreases as the atomic size increases. Nitrogen is placed above phosphorus in group 15. So, nitrogen is more electronegative than phosphorus.
Answered by | 28th May, 2014, 10:35: AM
- How many groups and periods were in Mendeleev's periodic table?
- how can we find the electro negitivity of an atom
- How to learn periodic table
- How are the properties of aluminium similar to boron?
- If an element X is placed in group 14, what will be the nature of bond in its chloride? Write the chemical formula of the compound formed.
- Please write all the trends in groups and periods of periodic table with reasons (each reason should be atleast of 3 -4 lines)
- Plz give and of Qsno 7 of periodic classification of elements from the inportimp question provided
- Explain giving justification the trends in the following properties of elements, on moving from left to right in a period, in the Modern periodic Table. (a) Variation of valency. (b) Change of atomic radius. (c) Metallic to non-metallic character. (d) Electronegative character. (e) Nature of oxides.
- What are the similarities between Mendeleev's periodic table modern periodic tablr
- the neutron was discovered in 1932 then how mendeleev calculated atomic mass
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Verify mobile number
Enter the OTP sent to your number