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8) 4-1 Atoms

Atoms

QuestionAnswer
What is the charge of a proton? Positive
What is the mass of a proton? 1 amu
Where is a proton located? Nucleus
What is the charge of a neutron? Neutral (no charge)
What is the mass of a neutron? 1 amu
Where is a neutron located? Nucleus
What is the charge of an electron? Negative
What is the mass of an electron? ~ 0 amu
Where is an electron located? Electron cloud
What subatomic particle can be used to identify an atom? Proton
What is the maximum number of electrons that can be placed in the first (1st) electron shell? 2
What is the maximum number of electrons that can be placed in the second (2nd) electron shell? 8
What is the maximum number of electrons that can be placed in the third (3rd) electron shell? 18
What is the definition of atom? The smallest particle into which an element can be divided and still be the same substance.
What is the definition of atomic number? The number of protons in the nucleus of an atom.
What is the definition of mass number? The total number of protons and neutrons in the nucleus of an atom.
Created by: bcroy
 

 



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