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Mass number

The mass number (symbol A, from the German word: Atomgewicht, "atomic weight"), also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. It is approximately equal to the atomic (also known as isotopic) mass of the atom expressed in daltons.

Standards, Mass number changes in radioactive decay & Mass number and isotopic mass

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Overview

Mass number changes in radioactive decay

Mass number and isotopic mass

Relative atomic mass of an element

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Map overview Semantic statistics

Mass number

Nodes54
Edges53
Triples17
Avg. degree1.96
Density0.037037
Components1

How this topic connects Entity context

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Mass number

Top relations

related to Mass number changes in radioactive decay · 7
Mass number → Different, Fajans, For, On, Soddy, The, Thus
related to Mass number and isotopic mass · 5
Mass number → Da, For, Mass, The, There
related to Relative atomic mass of an element · 4
Mass number → For, In, The, This
is a · 1
Mass number → counted number

Important terminology Word statistics

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Important terminology

mass number neutrons atomic protons nucleus also isotopic isotope decay atom element 12 different symbol dalton example known daltons two

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Mass numberis acounted number0.90text
Mass numberrelated to Mass number and isotopic massThe0.60section
Mass numberrelated to Mass number and isotopic massDa0.60section
Mass numberrelated to Mass number and isotopic massFor0.60section
Mass numberrelated to Mass number and isotopic massMass0.60section
Mass numberrelated to Mass number and isotopic massThere0.60section
Mass numberrelated to Mass number changes in radioactive decayDifferent0.60section
Mass numberrelated to Mass number changes in radioactive decayFajans0.60section
Mass numberrelated to Mass number changes in radioactive decaySoddy0.60section
Mass numberrelated to Mass number changes in radioactive decayFor0.60section
Mass numberrelated to Mass number changes in radioactive decayThus0.60section
Mass numberrelated to Mass number changes in radioactive decayOn0.60section

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    Min side: 3
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