phr. 【化学】原子序号1氢 英语解释 a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe 相似短语 atomic number 1phr. 【化学】原子序号1氢 ...
Which element has an atomic number of 76? Which element has the atomic number 9? Which element has an atomic number of 15? Which element has an atomic number of 12? Which element has an atomic number of 79? Which element has an atomic number of 1? Which element has the atomic number ...
Atomic Number: 1 Hydrogen is the first element in theperiodic table, meaning it has anatomic numberof 1 or 1 proton in each hydrogen atom. The name of the element comes from the Greek wordshydrofor "water" andgenesfor "forming," since hydrogen bonds with oxygen to form water (H2O). Rob...
atomic-number n. 1. 原子序数(指原子在元素周期表中的序号)the number of protons in the nucleus (= centre) of an atom, which is characteristic of a chemical element. Elements are placed in the periodic table according to their atomic numbers . ...
Boron: Semimetallic chemical element, chemical symbol B,atomic number5. 硼: 半金属的化学元素, 化学符号b, 原子序数5. 期刊摘选 展开全部 英英释义 Noun 1. the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral...
What is the definition of an atomic number? An atomic number of an element is the number of protons in all the atoms of that element. Atomic numbers are always whole numbers greater than zero, such as 1,2,3... since an atom cannot have a fractional number of protons. What is the di...
the number of positive charges or protons in the nucleus of an atom of a given element, and therefore also the number of electrons normally surrounding the nucleus.:at. no.;:Z Discover More Word History and Origins Origin ofatomic number1 ...
结果1 题目an element is a substance , all of ___ atoms have the same atomic number为什么选whose ? 请高手讲讲..相关知识点: 试题来源: 解析 首先句子后面是作定语的,由主句可以知道,修饰的是主语element.因为atoms是原子的意思,对于元素来说,逻辑关系自然是“元素里的原子”,所以element和atoms具有从属...
1.the smallest part of an element.átomo 2.anything very small.There's not an atom of truth in what she says.ápice,pizca,gota aˈtomic(-ˈto-)adjective atómico atom(ic) bomb a bomb using atomic energy.bomba atómica atomic energy ...
Ghiorso A,Harvey B G,Choppin G R,et al.New Element Mendelevium, Atomic Number 101. Physical Review . 1955Ghiorso A; Harvey B G; Choppin G R;.New Element Mendelevium, Atomic Number 101.Phys Rev.1955.1518-New Element Mendelevium, Atomic Number 101. Ghiorso A,Harvey B G,Choppin G ...