I A & II A

1 s Li 6.54 s 3 s 2

lithiumsodiumpotassiumrubidiumcaesiumfranciumberylliummagnesiumcalciumstrontiumbariumradium (generalization)

(simple substance)

IA S

: 2 M(s) + 2 H2O (l) 2 M+(aq) + 2 OH-(aq) + H2(g) . : M(s) + 2 H2O (l) M+(aq) + 2 OH(aq) + H2(g)

Li Li(1)(2)

Li Be Eq 25 . 3519 kJmol-1 Eq(Be2+/Be) I1 (Be) + I2 (Be) = 2656 kJmol-1

(flame reaction). (flame reaction)

4~6 NH3

::

CaCl2 (flux) Na Na K CaRb SrCs BaLi BeNa Mgs

K C K K

Pk DrGmDrHm766 C890 C KCl NaCl , T DrSmDrGm

: Na Li K Cs Rb Mg Ca Be Ba Sr : Na K Li Cs Rb Ca Mg Ba Sr Be

2. Al-Li(3 % ),3. 4. ()1,U-23581340

0.1%

. 133Cs (9192631770 s-1) , SI s. ( 1.0 10-9 s )

70 % -80 % . -. 70 %

(compound)

(hydride)

:O2- > O2- > O22-(O2-)

(O22-)

(O2-)(1) (2) (oxide)MCO3 MO + CO2(g)

(3) H2O () Na2O2 (oxide)

s . .

.Be2+ BeCl2.

NaClO4 KClO4 Na+K+ClO4 . . . Na+K+ClO4

M2CO3 MCO3

MCO3

. 3. 3Nobel (complex)

(crown ether) (macrocyclic coordination compound) .K+Na+ 105 :1 (cryptant)

2.2.1 Na+ 2.2.2 K+

2 3 (diagonal rule) 2 LiBeB 3 3 MgAlSi 3

Li+Mg2+

HBF4 H2SiF6 BBSiSi H3BO3 H2SiO3

15C5