amareetrevino1 amareetrevino1

20-01-2022
Chemistry

contestada

What is the atomic number for an element whose mass number is 78,
which contains 30 neutrons per atom?

Respuesta :

sukainatgnb sukainatgnb

20-01-2022

Answer:

protons = atomic numbermass number = protons + neutronsatomic number = mass number - neutrons = 78-38 = 40

Explanation:

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boydkimora12 boydkimora12

20-01-2022

Answer:

48

Explanation:

i took the test lolll

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