20 2015

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1. 2. 3. 4. 5. ) ) ) ) ) 1) () : d = N => d = N

B : d = N == > d = NB

E N

= NB

=>

=

B2) ()

92238 90234 + 24 ( 1 )

90234 92234 + 2 + 2 ( 2 ) 3) (ii) F = Fc = > => 2 =

2

n=1 2 =

2

1 ( )

n=4 2 = 2

4 ( ) r4 = n2r1 = 16 r1

M : 2

2=

2

12

161

=> 2

2= 16

1=>

= 4

1) = 1 = - ( - 13,6 ) =- 13,6 Ev 2) 11 + 37 24 + 24

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20 2015

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3) Q = M - M = 938,28 + 6533,87 ( 2* 3727,4) = 17,35 eV 4) : + U = + U => = Umax => =

=> = ( 3)

=> 0,3*1,6*10 -13 = 9 10

9 31,6 1019 1,6 1019

=> .,..=> = 14,4 10-15 m < r 1. min=50pm=50 10 12

min = eV

V = che min

V = 3 10 8 23 10 33

1,6 10 19 50 10 12 V = 2 10 25

8 10 30

V = 10 5

4 V = 2,5 10 4 V = 25.000 V

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