1-Find the number of electron and neutrons in the following: 197Au+3 Electrons ? Neutrons? 2

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answerhappygod
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1-Find the number of electron and neutrons in the following: 197Au+3 Electrons ? Neutrons? 2

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1-Find the number of electron and neutrons in the following:
197Au+3
Electrons ?
Neutrons?
2-If the reactants energy is less than the products energy,
reaction must be endothermic.
Select one:
True
False
3-
Electroplating a metal is an example of physical change.
Select one:
True
False
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