百度试题 结果1 题目(ii) Elements in the same group have the same number of A(1) A electrons in the outer shell B electron shells C neutrons D protons 相关知识点: 试题来源: 解析 A 反馈 收藏
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 ...
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. 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 ...
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。
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...
Reason: Elements in a group have the same number of electrons in the outermost shell hence they have similar chemical properties. View Solution Q4 what is meant by periodicity of properties of elements? why are properties of elements placed in the same group of the periodic ...
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
The physical and chemical properties of elements depend on the number of valence electrons. Elements present in the same group have the same number of valence electrons. Therefore, elements present in the same group have similar physical and chemical properties. ...