Mass number (A) is a characteristic property of a specific isotope of an element, equal to the sum of the number of protons and neutrons in the nucleus.Citing this page: Generalic, Eni. "Mass number." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. 15 Dec. ...
(Atomic Physics) the total number of neutrons and protons in the nucleus of a particular atom. Symbol: A Also called: nucleon number Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011,...
mass numbernoun a whole number that expresses the approximate mass of an atom in terms of the number of protons and neutrons in the atom mass number医学词典英英释义 mass numbernoun an integer that approximates the mass of an isotope and that designates the number of nucleons in the nucleus ...
沪江词库精选mass number是什么意思、英语单词推荐、用法及解释 名词(原子)质量数 英语解释 the sum of the number of neutrons and protons in an atomic nucleus 相似短语 mass numbern.(原子)质量数 even mass number偶质量数 number of mass transfer unit传质单元数 ...
Proton, stable subatomic particle that has a positive charge equal in magnitude to a unit of electron charge and a rest mass of 1.67262 x 10^-27 kg, which is 1,836 times the mass of an electron. Protons, together with electrically neutral particles calle
Neutron, neutral subatomic particle that, in conjunction with protons, makes up the nucleus of every atom except ordinary hydrogen (whose nucleus has one proton and no neutrons). Along with protons and electrons, it is one of the three basic particles ma
mass number 英[mæs ˈnʌmbə] 美[mæs ˈnʌmbɚ] 释义 n. (原子)质量数 英英释义 Noun 1. the sum of the number of neutrons and protons in an atomic nucleus 行业词典 物理学 质量数
mass number 英 [ˈmæs nʌmbə(r)] 美 [ˈmæs nʌmbər]n. (原子)质量数 牛津词典 noun （原子）质量数the total number of protons and neutrons in an atom
Mass Numbermass numbermass number(1923) n. The total number of nucleons (protons and neutrons) in an atom.John Wiley & Sons, Inc.Van Nostrand's Scientific Encyclopediadoi:10.1002/0471743984.vse4821
What is Atomic Number & Mass Number - The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element. Visit BYJU'S to learn more about atomic numbers.