+ gold au by: mallory johnson and hayley jackson
Post on 19-Dec-2015
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TRANSCRIPT
+Group Characteristics and Information Found in Nature
Un-reactive
Period Number: 6
Group Number: 11
Group Name: Transition Metals
Atomic Number: 79
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Gold is unreactive because all the noble gases have a stable electronic configuration, and therefore they would not share their electrons with other atoms.
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The difference between the atomic mass and mass number of gold is that the average mass is the protons and neutrons combined. The mass number the amount of protons only. The mass number is 189 and the atomic number is 79. The mass number is larger than the atomic number.