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Chemistry, 10.07.2019 17:00, dessssimartinez6780
Naturally occurring copper is composed of 69.17% of 63cu, with an atomic mass of 62.9296 u, and 30.83% of 65cu, with an atomic mass of 64.9278 u. calculate the average atomic mass of copper. g
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Chemistry, 22.06.2019 17:00, brownvester44
Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.
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Naturally occurring copper is composed of 69.17% of 63cu, with an atomic mass of 62.9296 u, and 30.8...
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