89Ac
锕系元素
锕 Ac
Actinium
物态与数值
- 物态
- 固态
- 周期／族
- 7／3
- 相对原子质量
- 227.0 （不是质量数）
- 原始密度
- 10.0 g/cm3
- 归一化密度
- 10.0 g/cm³
- 来源熔点字段
- 1500.0 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
- 3500.0 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。
Actinium is a radioactive chemical element with symbol Ac (not to be confused with the abbreviation for an acetyl group) and atomic number 89, which was discovered in 1899. It was the first non-primordial radioactive element to be isolated. Polonium, radium and radon were observed before actinium, but they were not isolated until 1902.
出处、中文名称与原始字段
- 来源位置
- multisubject/elements/raw/PeriodicTableJSON.json#/elements/88
- 原记录摘要
- 05e478cb1192c5bbfad8d9600fd3b4c7902c0966ad5d0408bfcc4d5092424c0d
- boil
- 3500
- melt
- 1500
- name
- Actinium
- xpos
- 3
- ypos
- 10
- block
- f
- group
- 3
- image
- {'url': 'https://upload.wikimedia.org/wikipedia/commons/2/27/Actinium_sample_%2831481701837%29.png', 'title': 'Actinium-225 medical radioisotope held in a v-vial at ORNL. The blue glow comes from the ionization of surrounding air by alpha particles', 'attribution': 'Oak Ridge National Laboratory, CC BY 2.0 <https://creativecommons.org/licenses/by/2.0>, via Wikimedia Commons, source: https://www.flickr.com/photos/oakridgelab/31481701837/'}
- phase
- Solid
- wxpos
- 3
- wypos
- 7
- number
- 89
- period
- 7
- shells
- [2, 8, 18, 32, 18, 9, 2]
- source
- https://en.wikipedia.org/wiki/Actinium
- symbol
- Ac
- cpk-hex
- 70abfa
- density
- 10
- summary
- Actinium is a radioactive chemical element with symbol Ac (not to be confused with the abbreviation for an acetyl group) and atomic number 89, which was discovered in 1899. It was the first non-primordial radioactive element to be isolated. Polonium, radium and radon were observed before actinium, but they were not isolated until 1902.
- category
- actinide
- named_by
- 未知
- appearance
- 未知
- molar_heat
- 27.2
- atomic_mass
- 227
- atomic_radii
- {'metallic': None, 'empirical': [195], 'calculated': None, 'van_der_waals': None, 'covalent_single': [186], 'covalent_triple': [140]}
- density_unit
- g/cm3
- spectral_img
- 未知
- bohr_model_3d
- https://storage.googleapis.com/search-ar-edu/periodic-table/element_089_actinium/element_089_actinium.glb
- density_g_cm3
- 10
- discovered_by
- Friedrich Oskar Giesel
- bohr_model_image
- https://storage.googleapis.com/search-ar-edu/periodic-table/element_089_actinium/element_089_actinium_srp_th.png
- electron_affinity
- 33.77
- ionization_energies
- [499, 1170]
- electron_configuration
- 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 6d1
- electronegativity_pauling
- 1.1
- electron_configuration_semantic
- [Rn] 6d1 7s2