Advertisements
Advertisements
Question
An element has an atomic number 12. How many electrons will be present in the K, L and M energy shells of its atom?
Advertisements
Solution
Electronic configuration of element with atomic number 12 is:
\[\underset{2}{\text{ K }}\underset{8}{\text{ L }}\underset{2}{\text{ M }}\]
There will be 2 electrons in the K shell, 8 electrons in the L shell and 2 electrons in the M shell of its atom.
APPEARS IN
RELATED QUESTIONS
What is the maximum number of electrons which can be accommodated in the K shell of an atom?
What is the maximum number of electrons an M shell of the atom can accommodate?
What is the maximum number of electrons that can go into the N shell of an atom?
Name the shell of an atom which can accommodate a maximum of :
(a) 2 electrons ?
(b) 18 electrons ?
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 atom of aluminium is represented by 27Al13. Write down the number of the arrangement of electrons in the different orbits or shells in one atom of aluminium.
The following element is given \[\ce{_14X}\]. State the electronic configuration and state whether it is a metal, non-metal, or inert gas.
The following element is given \[\ce{_18Y}\]. State the electronic configuration and state whether it is a metal, non-metal, or inert gas.
Write down the electron distribution of chlorine atom. How many electrons are there in the L shell? (Atomic number of chlorine is 17).
The maximum No. of electrons that can be accommodated in the M shell is ______.
