Chemistry - Ions and subatomic particles

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Edin_Dzeko
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Homework Statement


19F-
p+ = ?
n = 10
e- = ?
Mass number = ?

----------------

137Ba2+
p+ = ?
n = ?
e- =?

Homework Equations


Are these (answers below in italics) correct?

The Attempt at a Solution


19F-
p+ = 9
n = 10
e- = 10
Mass number = 19

137Ba2+
p+ = 56
n = 81
e- = 54
Mass number = 137
 
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