Advertisements
Advertisements
Question
Differentiate between the term Stable and unstable electronic configuration.
Solution
- Stable electronic configuration: Atoms having octet (8 electrons) or duplet 2 electrons in outermost shell is stable electronic configuration 2 electrons in K shell the valence shell.
i.e. “Atoms having valence shell completely filled” shell. - Unstable electronic configuration: “Atoms of the element which do not have their valence shells completely filled.”
APPEARS IN
RELATED QUESTIONS
Write the distribution of electrons in carbon and sodium atoms?
What is the maximum number of electrons which can be accommodated in the :
(a) innermost shell of an atom?
(b) outermost shell of an atom?
The atom of an element X has 7 electrons in its M shell.
(a) Write the electronic configuration of element X.
(b) What is the atomic number of element X?
(c) Is it a metal or a non-metal?
(d) What type of ion will be formed by an atom of element X? Write the symbol of the ion formed.
(e) What could element X be?
Give scientific reason.
Atoms are stable though negatively charged electron is revolving within it.
Draw a neat labelled diagram.
Diagramatic sketch of electronic configuration of Argon (Atomic number 18)
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.
The following element is given \[\ce{_14X}\]. State the electronic configuration and state whether it is a metal, non-metal, or inert gas.
Give a reason for the following:
The shells surrounding the nucleus of an atom are also called ‘energy levels’.
Total number of electrons that can be accommodated in an orbit is given by __________.
The maximum No. of electrons that can be accommodated in the M shell is ______.
