sierrareid94 sierrareid94

Today at 7:30 PM
Physics

Answered

What is the mass number of an atom which contains 27 protons, 2 electrons, and 30 neutrons?

Answer :

akmalghufran316 akmalghufran316

Today at 7:36 PM

Answer:57

Explanation:

Because the mass number of an element is the sum of number of protons and neutrons so add up no of protons and no of neutrons.

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