แผนแบบจำลองอะตอม ว30221
- 12. (e/m)
1.76 x 108
5.27 x 1017 esu
(R.A. Millikan)
(
)
1.6 x 10-19
= 1.76 x 108
e = 1.6 x 10-19
m = 9.1 x 10-28
9.1 x 10-28
(Goldstein)
e/m
e/m
- 15. = p+n A
=
Z
X
p
2
(X)
“
” (Z)
“
”
(A)
(A)
( ZA X)
(Z)
4
2
He
4
2
2
2
2
9
4
Be
9
4
4
5
4
O
16
8
8
8
8
Na
23
11
11
12
11
Al
27
13
13
14
13
16
8
23
11
27
13
- 20. . 8 × 9.4 × 10-26 g
. 16 × 9.4 × 10-
28 g
8.
1.7 8 × 10-27 kg
× 10-31 kg
em
.
.
900
.
9.
4
1,800
.
3,700
9.1
- 23. . 23Na
11
2
. 4He
2
9
. 4Be
. 19
9F
16.
2
I
13
15
II
15
16
I
II
.
. I
. I
,II
,II
. I
,II
17.
.
.
.
.
.
.
18.
.
.
M
13
14
M
- 24. . 14M, MCI3
13
13
. 14M, MCI4
. 27 , MCI3
M
13
27 ,
. 14M MCI4
19.
14A, 16 ,
7
8B
23 , 24 ,
C 12D
11
35
E
17
. A3- C+ D +
. B2- C+ D+2
. A+3 B- 2 E-
. C D2+ E
20.
28X
34 2
Y
.
4
2
.
4
6
2
.
4
2
2
.
2
6
4
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