Advertisements
Advertisements
Question
Differentiate between the term Duplet and octet rule.
Advertisements
Solution
- Duplet Rule: For an atom to achieve stable electronic configuration it must have 2 electrons in the first shell [outermost if it is K– shell] like nearest noble gas Helium.
- Octet Rule: For an atom to achieve stable electronic configuration it must have 8 electrons in outermost orbit like that of noble gas other than Helium. i.e. Ne, Ar, Kr, Xe, Rn.
RELATED QUESTIONS
Write the distribution of electrons in carbon and sodium atoms?
Summarize the rules for writing of distribution of electrons in various shells for the first eighteen elements.
What do you understand by the term "electronic configuration" of an element? Write down the electronic configuration of oxygen (At. No. = 8).
An element has atomic number 13 and an atomic mass of 27.
(a) How many electrons are there in each atom of the element ?
(b) How are these electrons distributed in the various energy levels ?
The correct electronic configuration of a chloride ion is :
The atom of aluminium is represented by 27Al13. Write down the number of electrons in the different orbits or shells in one atom of aluminium.
Explain the arrangement and distribution of electrons in the various shells with reference to an atom in general and to an atom of potassium ‘3919K’ with special reference to the 2n2 rule.
Name an element which has the same number of electrons in its first and second shell.
For an atom ‘X’, K, L and M shells are completely filled. How many electrons will be present in it?
The electronic configuration of ‘Cl’ is ______.
