|
|
| Katrangan Umum Unsur
|
| Jeneng, Lambang, Nomer atom
|
lawrencium, Lr, 103
|
| Dhèrèt kimia |
transition metals
|
| Golongan, Periode, Blok
|
n/a, 7, d
|
| Rupa |
unknown, probably silvery
white or metallic gray
|
| Massa atom |
[262] g/mol
|
| Konfigurasi elektron |
[Rn] 5f14 6d1 7s2
|
| Cacahing èlèktron saben kulit |
2, 8, 18, 32, 32, 9, 2
|
| Ciri-ciri fisik
|
| Fase |
presumably a solid
|
| Titik lebur |
- K
(- °C, - °F)
|
| Ciri-ciri atom
|
| Bilangan oksidasi |
3
|
| Elektronegativitas |
- (skala Pauling)
|
| Energi ionisasi
|
pertama: 443.8 kJ/mol
|
| ke-2: 1428.0 kJ/mol
|
| ke-3: 2219.1 kJ/mol
|
| Lain-lain
|
| Nomor CAS |
22537-19-5
|
| Isotop
|
| iso
|
NA
|
waktu paruh
|
DM
|
DE (MeV)
|
DP
|
| 262Lr
|
syn
|
3.6 h
|
EC
|
|
262No
|
| 261Lr
|
syn
|
44 m
|
SF/EC?
|
|
|
| 260Lr
|
syn
|
2.7 m
|
alpha
|
8.04
|
256Md
|
| 259Lr
|
syn
|
6.2 s
|
78% alpha
|
8.44
|
255Md
|
| 22% SF
|
|
|
| 258Lr
|
syn
|
4.1 s
|
alpha
|
8.68,8.65,8.62,8.59
|
254Md
|
| 257Lr
|
syn
|
0.65 s
|
alpha
|
8.86,8.80
|
253Md
|
| 256Lr
|
syn
|
27 s
|
alpha
|
8.62,8.52,8.32...
|
252Md
|
| 255Lr
|
syn
|
21.5 s
|
alpha
|
8.43,8.37
|
251Md
|
| 254Lr
|
syn
|
13 s
|
78% alpha
|
8.46,8.41
|
250Md
|
| 22% EC
|
|
254No
|
| 253Lrm
|
syn
|
0.57 s
|
alpha
|
8.79
|
249Md
|
| 253Lrg
|
syn
|
1.49 s
|
92% alpha
|
8.72
|
249Md
|
| 8% SF
|
|
|
| 252Lr
|
syn
|
0.36 s
|
alpha
|
9.02,8.97
|
248Md
|
|
| Referensi
|
Lawrencium (uniné /ləˈrɛnsiəm/) iku èlemèn sintètis radioaktif kanthi simbul Lr (biyèn Lw) lan nomer atom 103.
Rujukan
Cathetan
Pranala njaba
Wiktionary
