Answered: Atomic Number Atomic Mass = : # of…

Atomic Number Atomic Mass = : # of Protons : # of Protons + # of neutrons :: #of electrons : #of protons + # of electrons

Chemistry In Focus

7th Edition

ISBN:9781337399692

Author:Tro, Nivaldo J.

Publisher:Tro, Nivaldo J.

Chapter3: Atoms And Elements

Section: Chapter Questions

Problem 18E: Determine the number of protons and electrons in each of the following ions: a.Mg2+b.Se2-c.O2-d.Fe3+

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Concept explainers

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.

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Atomic Number =}
Atomic Mass:
: # of Protons
:: # of Protons + # of neutrons
:: #of electrons
: #of protons + # of electrons
1
3.
4.

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