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”...
After a molecule has lost an electron, it has a positive charge .A.moneyB.currentC.mo
Put a proper word on each blank. 质子带正电,电子带负电,而中子既不带正电,也不带负电。 译:A proton has a positive charge and an electron a negative charge, but a neutron ___ ___.相关知识点: 试题来源: 解析 has;neither 反馈 收藏 ...
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...
ai should wind the watch with the nut in my bag i should wind the watch with the nut in my bag[translate] amoment vector p points from the negative charge to the positive charge, and has a 片刻传染媒介p点从负电荷到正电荷,和有a[translate]...
判断下列句子中 charge 的词性和含义① The restaurant has a minimum charge of$50 per person, so the four of us need to pay at least $ 200.n.收费② If your card has been lost, a fee of $5 is charged for the production of a replacement card.vt, 收费,要价③Two men have been charge...
aitems mentioning the freighes charges separately 项目分开地提及freighes充电[translate] a最终他病倒了 Finally he was laid up with an illness[translate] a个基本要素:一是具有神圣(或邪恶)特征的人或事物;二是由上述的人或事物的特征派生出来的禁令;[translate] ...
Reports on how the electroscope aids in the identification of an electrical charge. Components of an electroscope; Charging an electroscope with a positive charge; Bringing the material to be tested close...
Unlike our cat, who had recently given birth to five kittens, Charge would have been a great mother. 可知每次孩子们哭的时候,Charge都会跑到他们身边,温柔地伸出她安慰的爪子。不像我们的猫,它最近生了五只小猫,Charge会是一个伟大的母亲。这句说明了作者家的猫妈妈没有Charge那么有爱心。再根据倒数第...
1.判断下列句子中 charge 的词性和含义 ①The restaurant has a minimum charge of $ 50 per person,so the four of us need to pay at least $200. _② How much did he charge you for repairing the bicyele? _③The phone won't work if it isn't charged up. __ ④ Two men have been ...