an atom that has lost or gained electrons and therefore has an electrical charge chemical symbol a code, usually made up of one or two letters, used to represent an element 最好的學習方式。免費註冊。 註冊代表你接受Quizlet的服務條款和隱私政策 ...
用Quizlet學習並牢記包含Antoine LaVoisier、Joseph Proust (1754-1826)、John Dalton (1766-1844)等詞語及更多內容的單詞卡。
The nucleus of an atom is made of protons and neutrons surrounded by and electron cloud. 最好的學習方式。免費註冊。 註冊代表你接受Quizlet的服務條款和隱私政策 以Google帳戶繼續 Flickr創作共用圖片 此學習集所使用的部分圖片,已透過Flickr.com取得創作共用授權。
elements and atoms 4.3 (30則評論) 單詞卡 學習 測試 配對 matter 點擊卡片即可翻轉👆 anything that has mass and takes up space 點擊卡片即可翻轉👆 1 / 51 建立者 sciencesavage8 老師 分享 用學習模式提升成績 82%的學生在使用學習模式後名列前茅 用學習模式學習 學生們也看了以下學習集: experiment ...
Electron Cloud model is a way to describe where electrons are when they go around the nucleus of an atom. Demitri Mendeleev a 1869 Russian chemist, who created the periodic table coumpound a thing that is composed of two or more separate elements; a mixture关于...
is the number of protons and neutrons; accounts for all the particles in the nucleous atomic number tells how many protons are in each atom of an element; it is unique for all elements isotope are atoms of the same element with a differant number of nuetrons average atomic mass average ...
a machine that moves atomic nuclei at higher and higher speeds until they crash into one another, sometimes forming heavier elements chemical symbol A one or two letter representation of an element period A horizontal row of elements in the periodic table Group Vertical column in the periodic tabl...
A substance in which there is only one type of particle; includes elements and compounds. Compound A substance made up of atoms of 2 or more different elements joined by chemical bonds. Atomic number the number of protons in the nucleus of an atom Atomic Mass The total mass of the number...
(the atomic number of uranium). alkali metals any of the elements lithium, sodium, potassium, rubidium, cesium, and francium, occupying group ia (1) of the periodic table. they are very reactive, electropositive, monovalent metals forming strongly alkaline hydroxides. alkaline earth metals any ...
2. All atoms of a given element are the same but different from all other elements3. Atoms are neither created nor destroyed during a chemical reaction (Law of Conservation of Mass) 单击单词卡可翻转 👆 1 / 41 单词卡 学习 测试 配对...