???? ????? ???????? ????????? ??
|
|
| ????? ????
|
| ???
?
???
?
?????
|
W ?74 ?tungsten
|
| ??????? ?????
|
transition metal
s
|
| ????
?
???
?
????
|
6
?
6
?
d
|
| ?????
|
grayish white, lustrous
|
| ????? ????
|
183.84
(1)
? / ???
|
| ????? ?????
|
[
Xe
] 4f
14
5d
4
6s
2
|
| ?????
??
????
|
2, 8, 18, 32, 12, 2
|
| ???????? ????
|
| ????
|
solid
|
| ?????
(?????
?? ??
)
|
19.25
? / ?? ??
|
| ????
?????
????
??
|
17.6
? / ?? ??
|
| ???? ??????
|
3695
?
(3422
?
? 6192
?
)
|
| ???? ????
|
5828
?
(5555
?
? 10031
?
)
|
| ????? ??????
|
52.31
??????/???
|
| ????? ?????
|
806.7
??????/???
|
| ????? ??????
|
(25
?
) 24.27
???/???/?????
|
????? ????
| P
/
Pa
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
|
| T
/
K
??
|
3477
|
3773
|
4137
|
4579
|
5127
|
5823
|
|
| ????? ????
|
| ???? ????
|
cubic body centered
|
| ?????? ??????
|
6
, 5, 4, 3, 2, 1, 0, ?1
(mildly
acidic
oxide)
|
| ???? ?????
|
2.36 (????? ??????)
|
| ??????? ?????????
|
???: 770
??????/???
|
| ????: 1700 ??????/???
|
| ??? ???
|
135
????????
|
| ??? ??? (??????)
|
193 ????????
|
| ??????
|
146 ????????
|
| ???????
|
| ???????? ?????
|
no data
|
| ???? ???????
|
(20
?
) 52.8 n Ω·m
|
| ?? ???????
|
(300 ?) 173
? / ? / ?
|
| ????????
|
(25
?
) 4.5
µm / ? / ?
|
| ????? ????
(????? ????)
|
(
????
) (annealed)
4620
?/?????
|
| ??? ?????
|
411 ?????????
|
| ????? ??
|
161 ?????????
|
| ????? ???
|
310 ?????????
|
| ?????? ????
|
0.28
|
| ??? ????
|
7.5
|
| ????? ????
|
400 ?????????
|
| ????? ????
|
380 ?????????
|
| ?? ?? ??? ???
|
7440-33-7
|
| ????? ?? ???
|
|
|
| ????? ???
|
 |
???? ????? ??
??????
?? ????? ???? ? ???? ???? ?????? ?????
|
