Yodium utawa Iodine (IPA: /ˈaɪədaɪn, ˈaɪədɪn/, utawa /ˈaɪədiːn/; saka Grikenlan: ιωδης iodes "ungu"), iku unsur kimia kanthi simbul I lan nomer atom 53.
Katerangan liyané Katrangan Umum Unsur, Ciri-ciri fisik ...
| 53 |
tellurium ← iodine → xenon |
Br
↑
I
↓
At |
|
|
| Katrangan Umum Unsur |
| Jeneng, Lambang, Nomer atom |
iodine, I, 53 |
| Dhèrèt kimia | halogens |
| Golongan, Période, Blok |
17, 5, p |
| Panampilan | violet-dark gray, lustrous
 |
| Massa atom | 126.90447(3) g/mol |
| Konfigurasi elektron | [Kr] 4d10 5s2 5p5 |
| Cacahing èlèktron saben kulit | 2, 8, 18, 18, 7 |
| Ciri-ciri fisik |
| Fase | solid |
| Massa jenis (watara suhu kamar) | 4.933 g/cm³ |
| Titik lebur | 386.85 K
(113.7 °C, 236.66 °F) |
| Titik umob | 457.4 K
(184.3 °C, 363.7 °F) |
| Titik kritis | 819 K, 11.7 MPa |
| Kalor peleburan | (I2) 15.52 kJ/mol |
| Kalor panguapan | (I2) 41.57 kJ/mol |
| Kapasitas kalor | (25 °C) (I2) 54.44 J/(mol·K) |
Tekanan uap (rhombic)
| P/Pa | 1 | 10 | 100 | 1 k | 10 k | 100 k |
| ing T/K | 260 | 282 | 309 | 342 | 381 | 457 |
|
| Ciri-ciri atom |
| Struktur kristal | orthorhombic |
| Bilangan oksidasi | ±1, 5, 7
(strongly acidic oxide) |
| Elektronegativitas | 2.66 (skala Pauling) |
| Energi ionisasi |
pertama: 1008.4 kJ/mol |
| ke-2: 1845.9 kJ/mol |
| ke-3: 3180 kJ/mol |
| Jari-jari atom | 140 pm |
| Jari-jari atom (terhitung) | 115 pm |
| Jari-jari kovalen | 133 pm |
| Jari-jari Van der Waals | 198 pm |
| Lain-lain |
| Sifat magnetik | nonmagnetic
Cithakan:Elementbox eresist ohmmat0 |
| Konduktivitas termal | (300 K) 0.449 W/(m·K) |
| Modulus ruah | 7.7 GPa |
| Nomor CAS | 7553-56-2 |
| Isotop |
| iso |
NA |
waktu paruh |
DM |
DE (MeV) |
DP |
|---|
| 127I |
100% |
I stabil kanthi 74 neutron |
| 129I |
syn |
15.7×106y |
β- |
0.194 |
129Xe |
| 131I |
syn |
8.02070 d |
β- |
0.971 |
131Xe |
|
| Referensi |
Tutup
