【5 Steps】Electron Configuration of Lithium(Li) in Just 5 Steps
Electron Configuration of Lithium(Li) in Just 5 Steps
To do or find or writing electron configuration of lithium(Li),we will follow just 5 steps.
Step-1:
To do electron configuration of lithium(Li),we have to know the atomic number of lithium(Li).
The atomic number of lithium(Li) is 3.So it has 3 electrons and 3 protons.
The atomic number of lithium(Li) is 3.So it has 3 electrons and 3 protons.
Look how I find the electronic configuration of lithium(Li).
.
.
This process is applicable for all the elements of the periodic table.
Step-2:
(How do you remember the order of electron configurations?)
Now we have to memorize the following sequence of the orbitals.
ss
ps ps
dps dps
fdps fdps fdps fdps....
In a line-
ss ps ps dps dps fdps fdps
fdps fdps fdps fdps.......
Step-3:
Now we have to first number the s-orbital (start with 1s)like this:
1s2s
p3s p 4s
dp 5s dp 6s
fdp7s fdp 8s...... According to your need.
In a line-
1s2s p3s p 4s dp 5s dp 6s
fdp7s fdp 8s........
Remember
● s-orbital start with 1s
● p-orbital start with 2p
● d-orbital start with 3d
● f-orbital start with 4f
Again,Now(second) we need number the p-orbital(start with 2p) like this:
ss
2ps 3ps
d 4ps d 5ps
fd6ps fd7ps fd8ps fd9ps....
In a line--
ss 2ps 3ps d4ps d5ps
fd6ps fd7ps fd8ps fd9ps....
Thirdly,we need number the d-orbital(start with 3d)like this:
ss
ps ps
3dps 4dps
f5dps f6dps f7dps f8dps....
In a line--
ss ps ps 3dps 4dps
f5dps f6dps f7dps f8dps....
Fourthly,number the f-orbital(start with 4f) like this:
ps ps
dps dps
4fdps 5fdps 6fdps 7fdps....
In a line--
ss ps ps dps dps 4fdps 5fdps 6fdps 7fdps......
Fifltly,number s,p,d,f together like this....
1s2s
2p3s 3p4s
3d4p5s 4d5p6s
4f5d6p7s 5f6d7p8s
6f7d8p9s.........
In a line----
1s 2s 2p 3s 3p 4s 3d 4p 5s d 5p 6s 4f 5d 6p 7s 5f 6d 7p 8s
6f 7d 8p 9s.........
How do you remember the order of electron configurations?
|
Step-4:
(What is spdf in electron configuration?
think--)
Now we have to know that
Now we have to know that
•S-orbital can take maximum 2 electrons.
•p-orbital can take maximum 6 electrons.
•d-orbital can take maximum 10 electrons.
•f-orbital can take maximum 14 electrons.
How to Do or Find Electron Configuration |
Step-5:
Now we know that lithium(Li) has 3 electrons.
Electronic configuration of
lithium(Li) will be...
s² s¹
ps ps
dps dps
fdps fdps fdps....
So,we are getting..
s² s¹
Now number s-orbital according to above process.
1s² 2s¹
So the electron configuration of lithium(Li) is 1s² 2s¹
●What is the electron configuration of lithium(Li)
Ans:
1s² 2s¹
Valence Electron configuration,number of valency electrons and valency shell of lithium(Li)
2s¹
2s¹
Comments
Post a Comment