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What’s the mass number for this atom

What’s the mass number for this atom
asked 114k views
3 votes
What’s the mass number for this atom

What’s the mass number for this atom-example-1
asked
User RemusS
by
8.2k points

1 Answer

2 votes

Answer:

169

Step-by-step explanation:

Mass number is the number of protons and the number of neutrons combined.

70 + 99 = 169

answered
User Quinten C
by
7.3k points
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