An atom is a basic constituent of matter that consists of a positively-charged core (nucleus) surrounded by a cloud of negatively-charged electrons. By definition, atoms are neutral entities because the positive charge of the nucleus is cancelled by the negative charge of the electron cloud. How...
求语法题a proton has a positive charge and an electron a negative charge,but a neutron has a neither b both WHY? 答案 质子带正电,电子带负电,中子不带电(正负电都不带).Neither就是都不的意思,所以选A相关推荐 1求语法题a proton has a positive charge and an electron a negative charge,but ...
After a molecule has lost an electron, it has a positive charge .A.moneyB.currentC.mo
百度试题 题目After a molecule has lost an electron, it has a positive___ 相关知识点: 试题来源: 解析 charge
刷刷题APP(shuashuati.com)是专业的大学生刷题搜题拍题答疑工具,刷刷题提供After a molecule has lost an electron, it has a positive charge . The word
A、 B、 C、 D、 点击查看答案进入小程序搜题 高架桥面建筑限界宽度一般为[填空(1)] 。 点击查看答案进入小程序搜题 Cleisthenes divided the society into 10 tribes, each tribe have 50 people participated the 500 member Council the Boule. 点击查看答案进入小程序搜题 ...
Effective nuclear charge (Zeff) is the “positive charge” felt by an electron. 参考答案: 对点击查看答案&解析 广告位招租 联系QQ:5245112(WX同号) 你可能感兴趣的试题 单项选择题降低心脏前负荷的血管扩张剂是 A. 硝酸甘油 B. 肼曲嗪 C. 哌唑嗪 D. 卡托普利 E. 酚妥拉明 点击查看答案 ...
An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate isσ=1.9×10-7Cm2,and the plates are separated by a distance of1.7×10-2m.How fast is the electron moving ju...
This article re-examines Schrdinger's charge density hypothesis, according to which the charge of an electron is distributed in the whole space, and the charge density in each position is proportional to the modulus squared of the wave function of the electron there. It is demonstrated that ...
选项: A. Dalton atomic theory B. Millikan oil drop experiment C. cathode ray tube, by J. J. Thompson D. atomic theory of matter E. Rutherford gold F. oil experiment 相关知识点: 试题来源: 解析 [Millikan oil drop experiment]