I am used to write: 2:8:10:2 (Ti)
Now they use: [Ar] 3d2 4s2 (with Argon being 2:8:8)
Can someone explain all these new notations, like
Se: 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p_x2 4p_y1 4p_z1???
(or where to find this on the web)
2006-09-19 23:14:52 · 3 answers · asked by just "JR" 7 in Science & Mathematics ➔ Chemistry
It is not homework! I am 58 and I am replacing "au pied leve" a missing teacher!
2006-09-19 23:34:30 · update #1
Sure no problem. See whenever you start a new period in the periodic table you use the noble gas at the end of the previous period to denote the previouselectron configuration that's before the element you have and then you keep adding the other configurations that are not included yet. You know that there are s,p,d,f shells right. So s is the closest to the nucleus and can carry up to 2 electrons, then the next shell is p and can carry up to 6 electrons, then there's d which can carry up to 10 electrons and f which can carry up to 14 electrons (I think).
So when you get an element, let's say K, the configurartion would be [Ne] 3s1.
Like period 1 is 1s, period 2 is 2s and so on.
2006-09-20 00:50:22 · answer #1 · answered by Natasha B 4 · 0⤊ 0⤋
Im not going to do your home work for you . But here is a site of the original professor that purposed this question .
2006-09-19 23:21:38 · answer #2 · answered by lovie12346 3 · 0⤊ 0⤋
read some books on atomic phyics, this is very simple.
2006-09-19 23:19:29 · answer #3 · answered by Anonymous · 0⤊ 0⤋