???????

	??????? ← ??????? → ?????????
????????
	silver-white (seen here floating in oil) ;
??????? ???
?? , ?????? , ?????????	???????, Li, 3
????????	/ ? l ? θ i ?m / LI -thee-?m
??????????? ??????	alkali metal
?????? , ?????? , ?????	1 , 2 , s
??????? ??????? ???????	6.941(2)?g·mol ?1
??????????? ?????????	1s 2 2s 1 or [He]2s 1
??? ?? ??? ??????????? ????????	2, 1
?????????? ???
?????	solid
?????? ( ??.?. ??)	0.534 g·cm ?3
?????????? ?? ????? ??????	0.512 g·cm ?3
?????????	453.69 K ,?180.54 ° C ,?356.97 ° F
???????	1615 K ,?1342 ° C ,?2448 ° F
???? ????????	(extrapolated) ; 3223 K , 67 MPa
????? ??????????	3.00 kJ·mol ?1
????????? ??????????	147.1 kJ·mol ?1
??????? ??? ???????	(25 °C) 24.860 J·mol ?1 ·K ?1
????? ?????
??????? ???
???????? ????	+1 , -1 ; (strongly basic oxide)
????????? ?????	0.98 (????? ??????????)
??????? ?????	1??: 520.2 kJ·mol ?1
	2??: 7298.1 kJ·mol ?1
	3??: 11815.0 kJ·mol ?1
??????? ???	152 pm
??????? ???	128±7 pm
????? ?????? ???	182 pm
??????????
?????? ??????	body-centered cubic
??????????	paramagnetic
????????? ?????????????	(20 °C) 92.8 nΩ·m
??? ??????????	(300 K) 84.8 W·m ?1 ·K ?1
??? ?????????	(25 °C) 46 μm·m ?1 ·K ?1
????? ???? (???? ?????? ????)	(20 °C) 6000 m/s
?? ???????	4.9 GPa
????????? ???????	4.2 GPa
???? ???????	11 GPa
?? ???????	0.6
CAS ?????? ????	7439-93-2
?????? ?????? ?????????
	??????? ?????: ??????? ?? ?????????
	6 Li content may be as low as 3.75% in ; natural samples. 7 Li would therefore ; have a content of up to 96.25%.
	v ; t ; e ;

???????

??????? ??? ???? ????-???? ???? ??????? ??????. ????? ?????? ????, ??? ??? ????????? ?????? ?? ???????? ????? ??? ???????? ???? ?????????????? ??? ??. ??? ??????? ???????? ???? ???????? ?? ???? ???????????????????? ??????? ?????? ?????? ??? ????? ???????????? ???? ???? ??? ??????? ???? ????.