Ngày tải lên :
22/06/2014, 17:20
...
Giri
tri
cria a vd m tucng ring
ld
A.
1,6
vd 16 ,8,
ga1.
.8. 9,4
vd
16 ,8
gami
'.C.
12 ,8 vir 11,2
garn.
-,D.
12 ,8 vd 28, 0
gam.
Ciu 32.
Hod tan tr6t tr6n hqp
rin
gdrn
CaC2, ... dpng il6t v6i
clo
tir,,
arq,
;il
;dr#.
ci6
tri cria
m ld
4. 28, 4 gam.
8. 38, 9
gam.
C.40,4 gam.
.b.46,0
gam.
c6u 38:
Cho
m5i chAt
cHrI
(x),
Hcl
1Y;,.
nu6c
brom
(z),
trtaNo2rtct ...
;-i'lro,
At:27;
s:32;cr=35,5;
K=3e;
Ca= 40;
Mn
=
55;
Fe:
56; Cu= 64
Zn
65; Rb
=
85 ;
Sr:
88 ;
Ag:
1 08;
Cs
:
133;
Ba:
137;No
:6,02.
t
Orr.'
Ki€m
tra
kidn
th*c
tdp 12-ldn...