what is electron configuration?

Question

i kno what is it, but i do not know how to write it
can someone give my an example please....i need an example with 8 electrons or more

i dont know how to draw a diagram

Answer 1

for example, a oxygen atom. the configuration would be

2 in the first orbit &
6 in the second
total 8

copper: 29e- (electrons)
2 in 1st
8 in 2nd
18 in 3rd &
1 in 4th

there can only be a certain # of e- per orbit depending on which orbit/energy level it is

the 1st can have only 2
2nd 8
3rd 18
4th 32
5th 32
6th 18
7th 8

these are borh's limits
when the max for one is met, more on to the next.
there is 1 more part... the outer most orbit, (2nd in O and 4th in Cu) can have no more then 8 e- in it.

in e- configuration notasion the amount is writen in this form

ex/ Cu 29e-
1s2 2p6 2s2 3d10 3p6 3s2 4f1

*the # following the letter is a superscribt telling how many e- in that part.

the # before the letter tells what orbit it goes in

I hope that helps

Answer 2

if u understand the meanin then its easy to know how to get it u know,example Sodium (Na) atomic no.=11 then the configuration is [2,8.1] since the frist shell electron shell (where the protons and neutrons r) hold 2 atoms and the rest can hold as much as 8 atoms.example Chlorine(Cl) atomic no.=17 the e.c is [2.8,7].
love,mandy

Answer 3

In atomic physics and quantum chemistry, the electron configuration is the arrangement of electrons in an atom, molecule, or other physical structure (ex, a crystal).