1 20 5.1 10 18 Kg , 0.03% O2 N2 CO2 2 16 1.6 1022 Kg , 93.06% OS 3 1.2 1021 Kg, 6.91% OHNa Mg Al60

10922 8722 1 11 H2N2O2F2Cl2 HeNeArKrXeRa Br2 Hg2

O2N2SCAuPt.

2 Fe2O3) CuS---------

1 SPdds 2 3

; ; FeCoNiPtPdCuAgZnHgCrMn --------

: ( 1 ~ 4 ) 1.e: nS2nP5 e X-

2 2 F > Cl> Br >IFBr>I

3 F2 Cl2 Br2 I2 F2 I2 4

1 0 0A 0B

2 1 23

1 2 HClO4HClO3HClO2HClO------- 3F-10 F,eedCl Br I-10+1+3+5+7de

3 1 0 0 2 0 > 0 LgK = nE0/ 0.0592 = n(0- 0) / 0.0592

1- 5 1 Cl2I2 2 3

4 > Br2 I2 I2I- I2 + I- I3- S

5 123 -

1 2 1 2 3 Cl2Br2I2 2F2 + 2OH-(2%) = 2F- + OF2 + H2O 2F2 + 4OH-( ) = 4F- + O2 + 2H2O

4 PH-1 F2 Cl-Br-I- ; Cl2Br-I- ; Br2 I- (2) ClO3- BrO3- I2 ; BrO3- Cl2

2X- - 2e = X2 . I- > Br- > Cl- > F- .1 2 3 Cl2 + Br- == Br2 + 2Cl--------- CCl4 Cl2 + I- == I2 + 2Cl-------- CCl4 Cl2: 5Cl2 + I2 + 6H2O == 2IO3-+10Cl- + 12H+

1 X2 + H2 == 2 HX 2 1 CaF2 + H2SO4() == 2HF + CaSO4 NaCl + H2SO4() == HCl + NaHSO4P ----- 2 HBrHI H3PO4 3

Cl2 Br2 I2HF12: SiO2 + 4HF == SiF4+2H2O3

~ NaCl----- ~ HgCl2---- BF3 CCl4 -------- -

1 X X n n = 1357 X < X XX 1 2 BrF3 I F5---

2 3 X Xn+H2O X-+XO- + H+ 4

M Xn+X2\ X Xn M X Xn M XnX2X Xn Cs I Br2 == CsBr + I Br Cs I Cl2 == CsCl + I Cl-

1 2 3 Ksp

: > > > Cl2OCl2O6 Cl2O7 ClO2

H X O H X O2 H X O3 H X O4

1 1 ( 2 2 [1] H+, [2] ROH [3]

3 1 2 Cl Br I BrO3- > ClO3- 3 > >

------------------------------------------------------------------------

12KMnO4 +16HCL = 5CL2+2MnCL2+ KCL+8H2O 2CL2(g) + 2Br-(2I-) = Br2(I2) + 2CL- 3CL2(g) + 6KOH() = KCLO3 + 5KCL + 3H2O KCLO3 4CL2(g) + 2NaOH() = NaCLO + NaCL+ H2OCL2(g)+2Ca(OH)2= Ca(CLO)2+ CaCL2+2H2O