38Sr
碱土金属
锶 Sr
Strontium
物态与数值
- 物态
- 固态
- 周期／族
- 5／2
- 相对原子质量
- 87.621 （不是质量数）
- 原始密度
- 2.64 g/cm3
- 归一化密度
- 2.64 g/cm³
- 来源熔点字段
- 1050.0 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
- 1650.0 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。
Strontium is a chemical element with symbol Sr and atomic number 38. An alkaline earth metal, strontium is a soft silver-white or yellowish metallic element that is highly reactive chemically. The metal turns yellow when it is exposed to air.
出处、中文名称与原始字段
- 来源位置
- multisubject/elements/raw/PeriodicTableJSON.json#/elements/37
- 原记录摘要
- 05e478cb1192c5bbfad8d9600fd3b4c7902c0966ad5d0408bfcc4d5092424c0d
- boil
- 1650
- melt
- 1050
- name
- Strontium
- xpos
- 2
- ypos
- 5
- block
- s
- group
- 2
- image
- {'url': 'https://upload.wikimedia.org/wikipedia/commons/8/84/Strontium-1.jpg', 'title': 'Strontium Pieces under Paraffin Oil.', 'attribution': 'Jurii, CC BY 3.0 <https://creativecommons.org/licenses/by/3.0>, via Wikimedia Commons, source: https://images-of-elements.com/strontium.php'}
- phase
- Solid
- wxpos
- 2
- wypos
- 5
- number
- 38
- period
- 5
- shells
- [2, 8, 18, 8, 2]
- source
- https://en.wikipedia.org/wiki/Strontium
- symbol
- Sr
- cpk-hex
- 00ff00
- density
- 2.64
- summary
- Strontium is a chemical element with symbol Sr and atomic number 38. An alkaline earth metal, strontium is a soft silver-white or yellowish metallic element that is highly reactive chemically. The metal turns yellow when it is exposed to air.
- category
- alkaline earth metal
- named_by
- 未知
- appearance
- 未知
- molar_heat
- 26.4
- atomic_mass
- 87.621
- atomic_radii
- {'metallic': [215], 'empirical': [200], 'calculated': [219], 'van_der_waals': [249], 'covalent_single': [185], 'covalent_triple': [139]}
- density_unit
- g/cm3
- spectral_img
- 未知
- bohr_model_3d
- https://storage.googleapis.com/search-ar-edu/periodic-table/element_038_strontium/element_038_strontium.glb
- density_g_cm3
- 2.64
- discovered_by
- William Cruickshank (chemist)
- bohr_model_image
- https://storage.googleapis.com/search-ar-edu/periodic-table/element_038_strontium/element_038_strontium_srp_th.png
- electron_affinity
- 5.023
- ionization_energies
- [549.5, 1064.2, 4138, 5500, 6910, 8760, 10230, 11800, 15600, 17100, 31270]
- electron_configuration
- 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2
- electronegativity_pauling
- 0.95
- electron_configuration_semantic
- [Kr] 5s2