85At
类金属
砹 At
Astatine
物态与数值
- 物态
- 固态
- 周期／族
- 6／17
- 相对原子质量
- 210.0 （不是质量数）
- 原始密度
- 6.35 g/cm3
- 归一化密度
- 6.35 g/cm³
- 来源熔点字段
- 575.0 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
- 610.0 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。
Astatine is a very rare radioactive chemical element with the chemical symbol At and atomic number 85. It occurs on Earth as the decay product of various heavier elements. All its isotopes are short-lived; the most stable is astatine-210, with a half-life of 8.1 hours.
出处、中文名称与原始字段
- 来源位置
- multisubject/elements/raw/PeriodicTableJSON.json#/elements/84
- 原记录摘要
- 05e478cb1192c5bbfad8d9600fd3b4c7902c0966ad5d0408bfcc4d5092424c0d
- boil
- 610
- melt
- 575
- name
- Astatine
- xpos
- 17
- ypos
- 6
- block
- p
- group
- 17
- image
- {'url': 'https://images-of-elements.com/astatine.jpg', 'title': 'This is only an illustration, not astatine itself. Crystals similar to iodine, but darker in color than these, which due to the extreme radioactivity glow blue and evaporate to dark purple gas', 'attribution': 'Chemical ELements A Virtual Museum, CC BY 3.0 <https://creativecommons.org/licenses/by/3.0> source: https://images-of-elements.com/astatine.php'}
- phase
- Solid
- wxpos
- 31
- wypos
- 6
- number
- 85
- period
- 6
- shells
- [2, 8, 18, 32, 18, 7]
- source
- https://en.wikipedia.org/wiki/Astatine
- symbol
- At
- cpk-hex
- 754f45
- density
- 6.35
- summary
- Astatine is a very rare radioactive chemical element with the chemical symbol At and atomic number 85. It occurs on Earth as the decay product of various heavier elements. All its isotopes are short-lived; the most stable is astatine-210, with a half-life of 8.1 hours.
- category
- metalloid
- named_by
- 未知
- appearance
- unknown, probably metallic
- molar_heat
- 未知
- atomic_mass
- 210
- atomic_radii
- {'metallic': None, 'empirical': None, 'calculated': [127], 'van_der_waals': [202], 'covalent_single': [147], 'covalent_triple': [138]}
- density_unit
- g/cm3
- spectral_img
- 未知
- bohr_model_3d
- https://storage.googleapis.com/search-ar-edu/periodic-table/element_085_astatine/element_085_astatine.glb
- density_g_cm3
- 6.35
- discovered_by
- Dale R. Corson
- bohr_model_image
- https://storage.googleapis.com/search-ar-edu/periodic-table/element_085_astatine/element_085_astatine_srp_th.png
- electron_affinity
- 233
- ionization_energies
- [899.003]
- electron_configuration
- 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p5
- electronegativity_pauling
- 2.2
- electron_configuration_semantic
- [Xe] 4f14 5d10 6s2 6p5