百度试题 结果1 题目必答All atoms of a given element have the same_. A. mass B. number of protons C. number of neutrons D. number of electrons and neutrons E. 相关知识点: 试题来源: 解析 B 反馈 收藏
an element is a substance ,all of ___ atoms have the same atomic number为什么选whose ?. 答案 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具有从属关系,用whose(注意啦!在定语从句表示从属关系的...
all atoms of this element contain 36 protons. this element contains 196.97 protons and neutrons. this is the most reactive of all elements. what do elements in the same column have in common?all atoms of this element contain 38 protons. this element contains 227 protons and neutrons.elements ...
An element is a substance, all of ___ atoms have the same atomic numbers.A.thatB.whoseC.whatD.which的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一键将文档转化为在线题库手机刷题,以提高学习效率,是学
Isotopes Atoms of the same element that have different numbers of neutrons Two ways to recognize isotopes: 1.Isotope Name: Chemical name – mass # –Example: Carbon -11, Carbon -12, Carbon Isotope Symbol: Example: Mass number atomic number X Chemical Symbol of element...
Nuclei that are all isotopes of an element all have the same A. number of protons. B. mass. C. number of nucleons. D. number of neutrons. Isotopes: In studying the atoms of an element, there are terms that might be enc...
___ is the same for all atoms of an element, and tells how many electrons are present in neutral atoms. Elements: The pure substances that are often studied in chemistry are known as elements. Pure substances can be classified as elements or compou...
All of the chemical elements consist of atoms which are specific to the element and the mass of an atom is dictated by the number of protons and neutrons it contains. The identity of the chemical element depends on the number of protons found within the atom’s nucleus, but the number of...
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aThe first ionisation energy of an element is the energy required to remove one electron from each atom in a mole of atoms of the element in the gaseous state 元素的第一游离能是要求的能量从每个原子去除一个电子在元素的原子痣在气体状态[translate] ...