The elements in the same group have similar ___. A. atomic numbers B. period numbers C. properties D. masses 相关知识点: 试题来源: 解析 C。同一族的元素具有相似的性质(properties)。选项 A“atomic numbers”是原子序数;选项 B“period numbers”是周期数;选项 D“masses”是质量。反馈...
A. atomic numbers B. chemical properties C. atomic radii D. ionization E. nergies 相关知识点: 试题来源: 解析 B。解析:文中提到“Elements in the same group have similar chemical properties. This is because they have the same number of valence electrons.”。 反馈 收藏 ...
A. different B. similar C. same D. opposite 相关知识点: 试题来源: 解析 B。“Elements in the same group have similar chemical properties.”可知同一组的元素有相似的化学性质。A 选项不同的、C 选项相同的、D 选项相反的均不符合语境。反馈 收藏 ...
试题来源: 解析 D。解析:文章中明确提到“The elements in the same group have similar chemical properties. This is because they have the same number of valence electrons.”,即同一族的元素具有相似的化学性质是因为它们有相同数量的价电子。反馈 收藏 ...
A. They have different chemical properties. B. They have similar physical properties. C. They have similar chemical properties. D. They have no relation. 相关知识点: 试题来源: 解析 C。中文解析:“Elements in the same group have similar chemical properties.”,同一族的元素具有相似的化学性质。反...
Elements in the same group often have similar chemical properties ___ they have the same number of valence electrons. A. because B. so C. but D. or 相关知识点: 试题来源: 解析 A。因为同一组的元素具有相似的化学性质是因为它们有相同数量的价电子,所以用 because。
1 (a) Elements in the same group tend to form products with similar physical properties.However, the oxides of carbon and silicon have very different physical structures. While CO2 exists as a gas at room temperature, SiO2 is a solid.(i) Explain, in terms of structure and bonding, the di...
百度试题 结果1 题目what do atoms of elements in the same group of the periodic table have in common?相关知识点: 试题来源: 解析 答案:All the members of a single group have similar chemical and physical properties.新年快乐!反馈 收藏
If some elements are present in a same group, then it is assumed that they will show similar chemical properties. This is based upon the fact that...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts ...
21 Elements X and Y are in the same Group of the Periodic Table.Which statement must be correct? A Atoms X and Y have similar electronic structure. B Atoms X and Y have the same physical properties. C If X has a smaller proton number than Y, it is less metallic. D The number of...