mass number


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Related to mass number: Isotopy

mass number

n.
The sum of the number of neutrons and protons in an atomic nucleus. Also called nucleon number.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

mass number

n
(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, 2014

mass′ num`ber


n.
the number of nucleons in an atomic or isotopic nucleus. Symbol: A
[1920–25]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

mass number

The total number of protons and neutrons in the nucleus of an atom. For example, nitrogen has 7 protons and 7 neutrons in its nucleus, giving it a mass number of 14.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

mass number

1. The total number of protons and neutrons (nucleons) in the nucleus of an atom.
2. The number of nucleons (protons and neutrons) in the nucleus of an atom.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.mass number - the sum of the number of neutrons and protons in an atomic nucleusmass number - the sum of the number of neutrons and protons in an atomic nucleus
mass unit - a unit of measurement for mass
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

mass number

n (Phys) → numero di massa
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in periodicals archive ?
Light (anti)nuclei [v.sub.2] is found to follow the atomic mass number (A) scaling for almost all collision energies at RHIC suggesting coalescence as the underlying process for the light nuclei production in heavy-ion collisions.
That is the balance of energy must be from which the neutrons number N and further the mass number A = N + z can be determined:
ear mass number of grain per ear and 100 grain weight were similarly increased (Pless than 0.001) by the in situ water harvesting techniques with highest values obtained in the mulching treatment and the lowest in the flat planted control (Table 2).Correlation coefficients (Pearson r) between maize grain yield and percent soil water content (PWC) showed that maize grain yield was significantly correlated (Pless than 0.05) with percent soil water content with in situ water harvesting treatments at 8 and 11 WAE but not at 14 WAE (Pgreater than 0.05).
While the right panel of Figure 3 only shows the resulting plot, the EJS simulation contains a panel with which the user can change the atomic mass number and mass in order to analyze the orbitals of other atoms.
Middlesbrough ASC assistant coach, Tom Harforth, said: "It was a brilliant weekend for the mass number of Middlesbrough swimmers who attended our AA meet.
Apart from the core BMA team, over 7,000 people were involved directly and indirectly in pulling off this enormous event -- be it the mass number of security or our fabulous volunteers.
When PBS rebroadcast its American Experience series on Ronald Reagan in early February, it mentioned how Reagan was able to detach himself from the impact that his policies would have on the individual because he viewed those policies as affecting a mass number that did not necessarily correlate to people and families.
Bishop Khoder receives Easter well- wishers at the Bishopric main office from 11:00 till 1:00 pm and from 4:00pm till 7:00pm >> Bishop Elie Bshara Haddad officiating over twin mass services in Saida and Deir el Qamar Bishopric at St Nicolas Cathedral - Saida 07:00 Opening doors and Easter mass 11:00 Mass number 2 > 10:00 Catholicus Aram I officiating over Easter mass at the Orthodox Armenian Cathedral- Antelias to be followed by Easter message at 11:00 after which the prelate meets with Easter well-wishers.
Zhang Lijun, Chairman of VODone, "The cooperation between VODone and Cmedia enables VODone to become a new media company with a competitive multimedia platform on a significantly mass number of new mobile handsets.
Isotope: Any of the several different forms of a chemical element that differ in their atomic mass (mass number); isotopes of an element possess the same number of protons in their nuclei but different numbers of neutrons and therefore differ in their mass numbers, which reflect the total number of protons plus neutrons.
Yet the idea of customizing mailers from the national headquarters to local tastes has not drawn a mass number of converts.