Transcript Atomic Structure Part III - Great Neck School District

Atomic Structure Part III
Objectives 10 - 16
10. What is “Ground State?”
Electrons in lowest possible levels
No vacancies below
“Normal”
11. Excited State is …
1 or more electrons got pushed up
There are empty spaces below
Electrons are not in their final position
Unstable
12. Why change levels?
Happy – why leave
Absorb energy
– Specific amounts
– Quanta
Release energy
– Specific amounts
– Bright Line Spectra
Some Bright Line Spectra
13. Apps
When is
this
useful?
How are Electrons arranged in the
“Ground State”
There is a specific order that the electrons
get added to the atom
2 – 8 – 18 – 32
These are “up to” numbers.
Let’s figure out the electron arrangements
for the following atoms
– H, He, Li, Be, B, C, N, O, F, Ne, Na, Mg, Si,
Cl, Ar, Ca, V, Cu, Ga, Hg