An ion has 56 protons, 54 electrons, and 81 neutrons. What is its atomic number ?

Chemistry

2 answers:

-BARSIC- [3]2 years ago

8 0

The Atomic Number indicates the number of protons = 56

EastWind [94]2 years ago

5 0

Answer: The barium – 137 atom would have 56 protons, 56 electrons and 81 neutrons. The barium – 137 cation would have 56 protons, 54 electrons and 81 neutrons.

Explanation: Hope this is helpful

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