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A certain atom has 26 protons, 26 electrons, and 30 neutrons. Its mass
number is

2 Answers

5 votes
The answer is 56 hope this helps
User Metropolis
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3 votes

Answer:

The mass number is 56

Step-by-step explanation:

You just add the number of protons and neutrons to find the mass number of a atom.

User Ritu Gupta
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