In science,a proton has a positive charge while an electron has a ___ charge. A. negative B. neutral C. positive D. zero 相关知识点: 试题来源: 解析 A。选项 A“negative”是“负的”,质子带正电,电子带负电。选项 B“neutral”是“中性的”;选项 C“positive”是“正的”;选项 D“zero”...
已知氯气和NaOH溶液在一定温度下能发生反应:Cl2+2NaOH===NaCl+NaClO+H2O,3Cl2+6NaOH===5NaCl+NaClO3+3H2O。某温度下,将氯气通入NaOH溶液中,反应得到NaCl、NaClO和NaClO3的混合溶液,经测定ClO－与ClO的物质的量之比为1∶3,则氯气与氢氧化钠反应时,被还原的氯元素和被氧化的氯元素的物质的量之比为( )
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 ...
A proton is an elementary particle of matter that (拥有) a positive charge.相关知识点: 试题来源: 解析 possesses 本题考查动词解题步骤:1. 分析句意:质子是带正电荷的物质的基本粒子。2. 确定答案。根据中文提示"拥有",确定单词为possess。句意为客观真理,因此应用三单形式,故本空填possesses。
1 Compared to the charge of a proton, the charge of an electron has (4)(1) a greater magnitude and the same sign(2) a greater magnitude and the opposite sign(3)the same magnitude and the same sign(4)the same magnitude and the opposite sign 相关知识点: 试题来源: 解析 (4) ...
and well do anything and were trying to pl and what have i learn and what have you don and what kind of fath and what search and what they did the and what was left of and what you got and when he had given and when he is silent and when he saw them and when he scored and ...
and what about his be and what are those en and what did you deci and what happened he and what they meant and when at last i fi and when he had destr and when i close my e and when i think im a and when the chief pr and when the music fa and when the night wi and when...
if a proton has a relative mass of 1 unit and a relative charge of +1 unit .what is the接上relative mass and charge of :1.a neutron2.an electron? 答案 质子,中子,电子...有什么关系?化学知识忘没了.搞清它们关系了应该就能选出来了.相关推荐 1if a proton has a relative mass of 1 unit...
What is the charge on a proton?Sub-atomic Particles:An atom is composed of three different particles that are known as sub-atomic particles. These are neutrons, protons and electrons. The former two are present inside the nucleus. While, the electron is keep revolving around the nucleus....
What is the proton proton chain? What is the net charge of an atom? What is the overall charge of an atom? What is the charge of a molecule having 14 electrons and 12 protons? What subatomic particle has a neutral charge? What charge would an ion that has 11 protons, 11 neutrons, ...