m8arittlerRose m8arittlerRose

20-11-2016
Physics

contestada

If an atom has 34 protons and 40 neutrons, what is its mass number?

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Аноним Аноним

21-11-2016

Mass number is the total of neutrons and protons added together therefore it is 34+40 which is 74. This is the mass number for the atom.

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tsaafiy tsaafiy

05-10-2018

The answer is 74

The mass equals the number protons and neutrons.

34+40= 74

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