arielnote235 arielnote235

03-02-2021
Chemistry

contestada

ldentify the atom whose nucleus is
composed of 56 protons and 82
neutrons.

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Аноним Аноним

03-02-2021

Answer:

Barium-138

Explanation:

The mass number is the atomic number + the number of neutrons. ... Identify the atom whose nucleus is composed of 56 protons and 82 neutrons. Barium-138 (the number of protons identifies the atom) Gallium has two naturally occurring isotopes: Ga-69 with a mass of 68.9256 amu and a natural abundance of 60.11% and Ga-71.

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