61Pm
镧系元素
钷 Pm
Promethium
物态与数值
- 物态
- 固态
- 周期／族
- 6／3
- 相对原子质量
- 145.0 （不是质量数）
- 原始密度
- 7.26 g/cm3
- 归一化密度
- 7.26 g/cm³
- 来源熔点字段
- 1315.0 K（部分来源实际为三相点，教学前需核对条件）
- 来源沸点字段
- 3273.0 K
部分超重元素属性为预测值，不能当作已审实验值。氢原始气体密度单位与归一化单位不同，均保留展示。
英文来源解释
中文翻译待补。
Promethium, originally prometheum, is a chemical element with the symbol Pm and atomic number 61. All of its isotopes are radioactive; it is one of only two such elements that are followed in the periodic table by elements with stable forms, a distinction shared with technetium. Chemically, promethium is a lanthanide, which forms salts when combined with other elements.
出处、中文名称与原始字段
- 来源位置
- multisubject/elements/raw/PeriodicTableJSON.json#/elements/60
- 原记录摘要
- 05e478cb1192c5bbfad8d9600fd3b4c7902c0966ad5d0408bfcc4d5092424c0d
- boil
- 3273
- melt
- 1315
- name
- Promethium
- xpos
- 7
- ypos
- 9
- block
- f
- group
- 3
- image
- {'url': 'https://upload.wikimedia.org/wikipedia/commons/5/5b/Promethium.jpg', 'title': 'Photomontage of what promethium metal might look like (it is too radioactive and real images are not available)', 'attribution': 'Unknown authorUnknown author, CC BY 3.0 <https://creativecommons.org/licenses/by/3.0>, via Wikimedia Commons, source: https://images-of-elements.com/promethium.php'}
- phase
- Solid
- wxpos
- 7
- wypos
- 6
- number
- 61
- period
- 6
- shells
- [2, 8, 18, 23, 8, 2]
- source
- https://en.wikipedia.org/wiki/Promethium
- symbol
- Pm
- cpk-hex
- a3ffc7
- density
- 7.26
- summary
- Promethium, originally prometheum, is a chemical element with the symbol Pm and atomic number 61. All of its isotopes are radioactive; it is one of only two such elements that are followed in the periodic table by elements with stable forms, a distinction shared with technetium. Chemically, promethium is a lanthanide, which forms salts when combined with other elements.
- category
- lanthanide
- named_by
- Isotopes of promethium
- appearance
- metallic
- molar_heat
- 未知
- atomic_mass
- 145
- atomic_radii
- {'metallic': [183.4], 'empirical': [185], 'calculated': [205], 'van_der_waals': None, 'covalent_single': [173], 'covalent_triple': None}
- density_unit
- g/cm3
- spectral_img
- 未知
- bohr_model_3d
- https://storage.googleapis.com/search-ar-edu/periodic-table/element_061_promethium/element_061_promethium.glb
- density_g_cm3
- 7.26
- discovered_by
- Chien Shiung Wu
- bohr_model_image
- https://storage.googleapis.com/search-ar-edu/periodic-table/element_061_promethium/element_061_promethium_srp_th.png
- electron_affinity
- 12.45
- ionization_energies
- [540, 1050, 2150, 3970]
- electron_configuration
- 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f5
- electronegativity_pauling
- 1.13
- electron_configuration_semantic
- [Xe] 4f5 6s2