LIine+spectra,+electron+shells+and+energy+level+diagrams

**__Line spectra, electron shells and energy level diagrams__** ( text p152-153) ​ __THE STRUCTURE OF THE ATOM__

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 * A plot showing each of the harmonic amplitudes in the wave is called the line spectrum.

This is prism. And do you know why some times there is blank spaces? ( no light) That's because of electrons can only fall into ground state of n=2,n=3,n=4....... Electrons can not fall in between the orbitals. TIP→ violet light contains most energy and white light is mixture of all the other colours.
 * [[image:http://antoine.frostburg.edu/chem/senese/101/electrons/images/hydrogen.gif]] || [[image:http://antoine.frostburg.edu/chem/senese/101/electrons/images/hspectrum.gif]] ||


 * __These are some examples of electronic strcture__**

H (1s¹) He (1s²) Li (1s² 2s¹) Be (1s² 2s² )

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When we write electronic structure we have to check it's atomic number. And make sure that first orbital can hold 2 electrons, 8 for 2nd orbital.** @

__ VOCABULARY __ LINE SPECTRA is a single line of spectrum. ** The energy difference between 2 particular energy level is called the QUANTUM of energy associated with the transition between the 2 levels(text -.152) SHELL is the set of all orbitals having the same n-value. ** ​**
 * (some vocabulraries from text 151-153)
 * ENERGY LEVEL** **is a specific amount of energy which an electron in an atom can possess. ( text p.151)
 * SUBSHELL** **is a set of orbitals of the same type.**
 * ORBITAL** ** is the actural region of space occupied by an electron in a particular energy level.
 * __ENERGY LEVEL DIAGRAMS__

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 * it can also written in...↓↓↓↓

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 * __REMEMBER^^__**

↓ SUBHELL ↓ ORBITALS(contain 2 e-) **
 * SHELL

Shell contain subshells. (increase shell we need subshell) Subshells contain Orbitals. Each orbital hold 2 elctrons.

s-subshell contain 1 orbital.and contains 2electrons. (because it has 1 orbital and it = contain 2 electrons) p-subshell contain 3 orbitals. Therefore it contains 6 electrons. d-subshell contain 5 orbitals=10e- f-subshell contain 7 orbitals=14e-


 * __REFERENCES__**

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 * DIAGRAM*=====

Diagram***** ( ALSO@) @@ &

GOOD LUCK FOR YOUR TEST~