百度试题 结果1 题目How many elements are there in the periodic table today? A. 100. B. 118. C. 120. D. 150. 相关知识点: 试题来源: 解析 B。原因:“Today, the periodic table contains 118 elements.”。 反馈 收藏
Atoms are the basis of all the elements in the universe, the building blocks of all visible matter, and the secret to nuclear power.
百度试题 结果1 题目There are ___ periods in the periodic table. A. 7 B. 8 C. 9 D. 10 相关知识点: 试题来源: 解析 A。目前元素周期表有 7 个周期。反馈 收藏
百度试题 结果1 题目The elements in the periodic table are arranged ___ a specific way. A. in B. on C. at D. by 相关知识点: 试题来源: 解析 A。“in a specific way”表示“以一种特定的方式”,是固定搭配。反馈 收藏
百度试题 结果1 题目There are ___ main groups in the periodic table. A. 7 B. 8 C. 9 D. 10 相关知识点: 试题来源: 解析 B。元素周期表有 8 个主族。反馈 收藏
题目Most of the elements in the periodic table are___. A. metals B. non-metals C. metalloids D. noble gases 相关知识点: 试题来源: 解析 A。元素周期表中的大多数元素是金属。虽然有非金属、类金属和稀有气体,但金属的数量相对较多。反馈 收藏...
The elements in the periodic table are arranged in order of___. A. atomic number B. mass number C. atomic weight D. electron configuration 相关知识点: 试题来源: 解析 A。元素周期表中的元素是按照原子序数排列的。选项 B 质量数、选项 C 原子量和选项 D 电子构型都不是元素周期表排列的主要依据...
And elements can combine (结合) to make new things l___H2O. This is hydrogen and oxygen put together, also known as w___! Learning about these things helps us better understand the world we live in.But have you ever noticed something missing in the periodic table? There were already 11...
A. size B. weight C. atomic number D. color 相关知识点: 试题来源: 解析 C。“The elements in the periodic table are arranged in order of increasing atomic number.”可知元素在周期表中是按照原子序数递增的顺序排列的。A 选项大小、B 选项重量、D 选项颜色均不符合语境。反馈 收藏 ...
There are118known periodic table elements. Are there 114 or 118 elements? The permanent names for elements 113, 115,117, and 118are nihonium, moscovium, tennessine, and oganesson. IUPAC officially recognized the elements at the end of 2015. ...