tarynsilverthorn tarynsilverthorn

09-09-2020
Chemistry

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if the nucleus of an atom has four protons and four neutrons what is its mass

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kiara7652 kiara7652

09-09-2020

Answer - Its atomic number is 2, so it has two protons in its nucleus. Its nucleus also contains two neutrons. Since 2 + 2 = 4, we know that the mass number of the helium atom is 4.
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