12Mg
碱土金属
镁 Mg
Magnesium
物态与数值
- 物态
- 固态
- 周期／族
- 3／2
- 相对原子质量
- 24.305 （不是质量数）
- 原始密度
- 1.738 g/cm3
- 归一化密度
- 1.738 g/cm³
- 来源熔点字段
- 923.0 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
- 1363.0 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。
Magnesium is a chemical element with symbol Mg and atomic number 12. It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (Group 2, or alkaline earth metals) of the periodic table:they each have the same electron configuration in their outer electron shell producing a similar crystal structure. Magnesium is the ninth most abundant element in the universe.
出处、中文名称与原始字段
- 来源位置
- multisubject/elements/raw/PeriodicTableJSON.json#/elements/11
- 原记录摘要
- 05e478cb1192c5bbfad8d9600fd3b4c7902c0966ad5d0408bfcc4d5092424c0d
- boil
- 1363
- melt
- 923
- name
- Magnesium
- xpos
- 2
- ypos
- 3
- block
- s
- group
- 2
- image
- {'url': 'https://upload.wikimedia.org/wikipedia/commons/3/3f/Magnesium_crystals.jpg', 'title': 'Magnesium crystals', 'attribution': 'Warut Roonguthai, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons'}
- phase
- Solid
- wxpos
- 2
- wypos
- 3
- number
- 12
- period
- 3
- shells
- [2, 8, 2]
- source
- https://en.wikipedia.org/wiki/Magnesium
- symbol
- Mg
- cpk-hex
- 8aff00
- density
- 1.738
- summary
- Magnesium is a chemical element with symbol Mg and atomic number 12. It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (Group 2, or alkaline earth metals) of the periodic table:they each have the same electron configuration in their outer electron shell producing a similar crystal structure. Magnesium is the ninth most abundant element in the universe.
- category
- alkaline earth metal
- named_by
- 未知
- appearance
- shiny grey solid
- molar_heat
- 24.869
- atomic_mass
- 24.305
- atomic_radii
- {'metallic': [160], 'empirical': [150], 'calculated': [145], 'van_der_waals': [173], 'covalent_single': [139], 'covalent_triple': [127]}
- density_unit
- g/cm3
- spectral_img
- https://en.wikipedia.org/wiki/File:Magnesium_Spectra.jpg
- bohr_model_3d
- https://storage.googleapis.com/search-ar-edu/periodic-table/element_012_magnesium/element_012_magnesium.glb
- density_g_cm3
- 1.738
- discovered_by
- Joseph Black
- bohr_model_image
- https://storage.googleapis.com/search-ar-edu/periodic-table/element_012_magnesium/element_012_magnesium_srp_th.png
- electron_affinity
- -40
- ionization_energies
- [737.7, 1450.7, 7732.7, 10542.5, 13630, 18020, 21711, 25661, 31653, 35458, 169988, 189368]
- electron_configuration
- 1s2 2s2 2p6 3s2
- electronegativity_pauling
- 1.31
- electron_configuration_semantic
- [Ne] 3s2