A. the number of protons in an atom B. the number of neutrons in an atom C. the number of electrons in an atom D. the total number of particles in an atom 相关知识点: 试题来源: 解析 A。元素的原子序数告诉我们一个原子中的质子数。原子序数等于质子数,选项 B 中子数不能由原子序数确...
A. the number of protons an element has B. the number of neutrons an element has C. the number of electron shells an element has D. the number of E. lectrons an element has 相关知识点: 试题来源: 解析 C。解析:The periods represent the number of electron shells an element has.反馈...
百度试题 结果1 题目The atomic number of an element represents the number of ___. A. protons B. neutrons C. electrons D. protons and neutrons 相关知识点: 试题来源: 解析 A。元素的原子序数代表质子数(protons)。反馈 收藏
9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook proton (redirected fromProtons) Dictionary Medical Encyclopedia Related to Protons:Photons Graphic Thesaurus🔍 DisplayON AnimationON Legend Synonym Antonym Related ...
原子本身是个整体,含电子、质子、中子以及其他组成部分。 5. It is arranged according to increasing atomic number, which is the number ofprotonsin each atom of an element. 它是根据原子序数的增加来排列的,原子序数是一种元素单个原子的质子数。 单词专题...
two protons bind the two outermost electrons 翻译为：两个质子结合最外层的两个电子。an element （X） with an atomic number of 16 has 14 electrons in X2- 翻译为：原子序数为16的元素X构成的X2-离子有14个电子。由此推知：X元素为S（硫）元素，而S2-有18个电子，所以是不正确的。对你...
解析 two protons bind the two outermost electrons翻译为:两个质子结合最外层的两个电子.an element (X) with an atomic number of 16 has 14 electrons in X2-翻译为:原子序数为16的元素X构成的X2-离子有14个电子.由此推知:X元素为S(硫)元素,而S2-有18个电子,所以是不正确的. ...
a positively charged elementary particle found in all atomic nuclei, the lightest and most stable of the baryons, and having a positive charge of 1.602 x 1019coulombs: the number of protons in an atom equals that element's atomic number. ...
Function in the Atom The protons inside an atom's nucleus help bind the nucleus together. They also attract the negatively charged electrons, and keep them in orbit around the nucleus. The number of protons in an atom's nucleus determines which chemical element it is. That number is known ...
Each element is defined by the number of protons found in each of its atoms. No matter how many electrons or neutrons an atom has, the element is defined by its number of protons. In fact, it's actually possible to have an atom consisting of only a proton (ionized hydrogen). The peri...