|
| Katrangan Umum Unsur |
|---|
| Jeneng,Lambang,Nomer atom | rhodium, Rh, 45 |
| Dhèrèt kimia | transition metals |
| Golongan,Période,Blok | 9,5,d |
| Panampilan | silvery white metallic
 |
| Massa atom | 102.90550(2) g/mol |
| Konfigurasi elektron | [Kr] 4d8 5s1 |
| Cacahingèlèktron sabenkulit | 2, 8, 18, 16, 1 |
| Ciri-ciri fisik |
|---|
| Fase | solid |
| Massa jenis (watarasuhu kamar) | 12.41 g/cm³ |
| Massa jenis cair ingtitik lebur | 10.7 g/cm³ |
| Titik lebur | 2237K
(1964 °C, 3567 °F) |
| Titik umob | 3968K
(3695 °C, 6683 °F) |
| Kalor peleburan | 26.59 kJ/mol |
| Kalor panguapan | 494 kJ/mol |
| Kapasitas kalor | (25 °C) 24.98 J/(mol·K) |
Tekanan uap| P/Pa | 1 | 10 | 100 | 1 k | 10 k | 100 k | | ingT/K | 2288 | 2496 | 2749 | 3063 | 3405 | 3997 | |
| Ciri-ciri atom |
|---|
| Struktur kristal | cubic face centered |
| Bilangan oksidasi | 4, 3, 2, 1[1]
(amphoteric oxide) |
| Elektronegativitas | 2.28 (skala Pauling) |
| Energi ionisasi | pertama: 719.7 kJ/mol |
| ke-2: 1740 kJ/mol |
| ke-3: 2997 kJ/mol |
| Jari-jari atom | 135pm |
| Jari-jari atom (terhitung) | 173pm |
| Jari-jari kovalen | 135pm |
| Lain-lain |
|---|
| Sifat magnetik | no data Cithakan:Elementbox eresist ohmmat0 |
| Konduktivitas termal | (300 K) 150 W/(m·K) |
| Ekspansi termal | (25 °C) 8.2 µm/(m·K) |
| Kecepatan suara (pada wujud kawat) | (20 °C) 4700m/s |
| Modulus Young | 380 GPa |
| Modulus rigiditas | 150 GPa |
| Modulus ruah | 275 GPa |
| Nisbah Poisson | 0.26 |
| Skala Mohs | 6.0 |
| Kakerasan Vickers | 1246 MPa |
| Kekerasan Brinell | 1100 MPa |
| Nomor CAS | 7440-16-6 |
| Isotop |
|---|
| iso | NA | waktu paruh | DM | DE(MeV) | DP |
|---|
| 99Rh | syn | 16.1d | ε | - | 99Ru | | γ | 0.089, 0.353,
0.528 | - | | 101mRh | syn | 4.34 d | ε | - | 101Ru | | IT | 0.157 | 101Rh | | γ | 0.306, 0.545 | - | | 101Rh | syn | 3.3 y | ε | - | 101Ru | | γ | 0.127, 0.198,
0.325 | - | | 102mRh | syn | 2.9y | ε | - | 102Ru | | γ | 0.475, 0.631,
0.697, 1.046 | - Cithakan:Elementbox isotopes decay4 | | 103Rh | 100% | Rhstabil kanthi 58neutron | | 105Rh | syn | 35.36h | β- | 0.247, 0.260,
0.566 | 105Pd | | γ | 0.306, 0.318 | - |
|
| Referensi |
|---|
