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en.wikipedia.org/wiki/Mass_number

The mass number (symbol A), also called nucleon number, is the total number of protons and ... This is not the same as the atomic number (Z) which denotes the number of protons in a nucleus, and thus uniquely identifies an element. ... the atomic mass unit scale based on 12C with equal numbers of protons and neutrons.

en.wikipedia.org/wiki/Atomic_number

The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of an atom. It is identical to the charge number of the nucleus. The atomic number uniquely identifies a chemical element. In an uncharged atom, the atomic number is also equal to the number of  ...

www.enotes.com/homework-help/atomic-number-an-element-equal-number-nucleus-668506

Get an answer for 'The atomic number of an element is equal to the number of _____ in the nucleus.' and find homework help for other Science questions at ...

chemed.chem.purdue.edu/genchem/topicreview/bp/ch6/index.php

The number of protons in the nucleus of the atom is equal to the atomic number ( Z). The number of electrons in a neutral atom is equal to the number of protons.

socratic.org/questions/what-is-mass-number-equal-to

Oct 1, 2015 ... The total number of nucleons - protons and neutrons - in the nucleus of an atom is called the Mass Number. For example, the most common ...

education.jlab.org/qa/pen_number.html

The atomic number is the number of protons in an atom of an element. In our example ... Atoms must have equal numbers of protons and electrons. In our ...

courses.lumenlearning.com/boundless-chemistry/chapter/the-structure-of-the-atom

This can be determined using the atomic number and the mass number of the ... atom, the number of electrons orbiting the nucleus is equal to the number of ...

dlc.dcccd.edu/biology1-2/atoms-and-elements

All atoms have at least one proton in their core, and the number of protons ... is equal to that of a single proton, and despite their small mass, electrons are ... Because we can find the number of protons and the atomic mass of an atom by ...

www.ask.com/youtube?q=The+Mass+Number+of+an+Atom+Is+Equal+to+the+Number+of&v=ufeZCeu_TSo
Nov 8, 2012 ... Atomic number and Mass number of an atom - Science .... Exactly exept atomic number is protons or elections there equal to each other but ...