How Many Protons (P)and Neutrons (N)are in an Atom of Barium-130

question 28

Multiple Choice

How many protons (p) and neutrons (n) are in an atom of barium-130?

• A)56 p,74 n
• B)56 p,130 n
• C)74 p,56 n
• D)130 p,56 n

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