43Tc
过渡金属
锝 Tc
Technetium
物态与数值
- 物态
- 固态
- 周期／族
- 5／7
- 相对原子质量
- 98.0 （不是质量数）
- 原始密度
- 11.0 g/cm3
- 归一化密度
- 11.0 g/cm³
- 来源熔点字段
- 2430.0 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
- 4538.0 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。
Technetium (/tɛkˈniːʃiəm/) is a chemical element with symbol Tc and atomic number 43. It is the element with the lowest atomic number in the periodic table that has no stable isotopes:every form of it is radioactive. Nearly all technetium is produced synthetically, and only minute amounts are found in nature.
出处、中文名称与原始字段
- 来源位置
- multisubject/elements/raw/PeriodicTableJSON.json#/elements/42
- 原记录摘要
- 05e478cb1192c5bbfad8d9600fd3b4c7902c0966ad5d0408bfcc4d5092424c0d
- boil
- 4538
- melt
- 2430
- name
- Technetium
- xpos
- 7
- ypos
- 5
- block
- d
- group
- 7
- image
- {'url': 'https://upload.wikimedia.org/wikipedia/commons/a/ab/Technetium-sample-cropped.jpg', 'title': 'Technetium Sample inside a sealed glass ampoule, filled with argon gas. 6x1 mm goldfoil covered with 99Tc powder (electroplated).', 'attribution': 'GFDL, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons'}
- phase
- Solid
- wxpos
- 21
- wypos
- 5
- number
- 43
- period
- 5
- shells
- [2, 8, 18, 13, 2]
- source
- https://en.wikipedia.org/wiki/Technetium
- symbol
- Tc
- cpk-hex
- 3b9e9e
- density
- 11
- summary
- Technetium (/tɛkˈniːʃiəm/) is a chemical element with symbol Tc and atomic number 43. It is the element with the lowest atomic number in the periodic table that has no stable isotopes:every form of it is radioactive. Nearly all technetium is produced synthetically, and only minute amounts are found in nature.
- category
- transition metal
- named_by
- 未知
- appearance
- shiny gray metal
- molar_heat
- 24.27
- atomic_mass
- 98
- atomic_radii
- {'metallic': [136], 'empirical': [135], 'calculated': [183], 'van_der_waals': None, 'covalent_single': [128], 'covalent_triple': [110]}
- density_unit
- g/cm3
- spectral_img
- 未知
- bohr_model_3d
- https://storage.googleapis.com/search-ar-edu/periodic-table/element_043_technetium/element_043_technetium.glb
- density_g_cm3
- 11
- discovered_by
- Emilio Segrè
- bohr_model_image
- https://storage.googleapis.com/search-ar-edu/periodic-table/element_043_technetium/element_043_technetium_srp_th.png
- electron_affinity
- 53
- ionization_energies
- [702, 1470, 2850]
- electron_configuration
- 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d5
- electronegativity_pauling
- 1.9
- electron_configuration_semantic
- [Kr] 4d5 5s2