答案解析 查看更多优质解析 解答一 举报 就是单数复数啦...比如说proton就是一个质子,protons就是多个质子……氢就是one proton……在这几个词中,nucleus比较特殊.nucleus是单数,nuclei是复数【参见半径单数=radius复数=radii】 解析看不懂?免费查看同类题视频解析查看解答 更多答案(1) ...
52 MeV protonsThe energy and angular distributions of secondary neutrons and photons from thick carbon, iron, copper and lead targets exposed to 52 MeV protons were measured with a NE-213 scintillator and activation detectors of Al and Fe. By unfolding the measured pulse height distributions of ...
- The number of protons, neutrons, and electrons in each element. - The basic properties of each group (e.g., metals, non-metals, noble gases). - Use visual aids such as diagrams and images to make the information more engaging. 3. Interactive Activity (10 minutes) - Divide the class...
Uranium, an earth-shaking element, has 92 electrons moving around the nucleus, all neatly spaced in seven shells. 铀，⼀种惊天动地的元素，有92个电⼦，围绕着原⼦核飞速地运转，整齐地分隔成7个原⼦壳层。In every element the nucleus consists of different numbers of protons and neutrons ...
as this determines the element, but the number of neutrons does: Carbon-12 has six protons and six neutrons and is stable; carbon-13 also has six protons, but it has seven neutrons; carbon-13 is also stable. However, carbon-14, with six protons and eight n...
neutrons. In fact, they have 6,7, and 8 neutrons, respectively. Atoms whose nuclei contain the same number of protons but a different numbers of neutrons are called isotopes for each other. When an element has a relative atomic mass, which is not...
The heat energy causes particles vibrate faster as they gain energy and push their neighboring particles further away from themselves, the forces of attraction weakens. The regular pattern of the structure breaks down and the particles can now move around each other, the solid has melted.If the ...
Section1CurrentandVoltage Weknowfromelementaryphysicsthatallmatterismadeoffundamentalbuildingblocksknownasatomsandthateachatomconsistsofelectrons,protons,andneutrons.Wealsoknowthatthechargeeonanelectronisnegativeandequalinmagnitudeto1.60210×1019C,whileaprotoncarriesapositivechargeofthesamemagnitudeastheelectron....
An atom is the smallest unit of an element that retains the chemical properties of that element. 原子是元素的最小单位,保持了该元素的化学性质。 nucleus The nucleus is the central part of an atom, containing protons and neutrons. 原子核是原 子的中心部分,包含了质子和中子。 proton A proton is...
Thecyclehereisinteresting.TAKINGSOMETHINGIN.ALLOWINGSOMETHINGOUT!.TheAtom Asyouprobablyalreadyknowanatomisthebuildingblockofallmatter.IthasanucleuswithprotonsandneutronsandanelectroncloudoutsideofthenucleuswhereelectronsareorbitingandMOVING.DependingontheELEMENT,theamountofelectronsdiffersaswellastheamountsoforbits...