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22 January, 13:54

A certain atom has an atomic number of four. How many protons does it have?

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  1. 22 January, 13:55
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    beryllium 4 protons
  2. 22 January, 14:23
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    Answer: 8 Protons

    Explanation:

    I think because consider the element helium. Its atomic number is 4, so it has four protons in its nucleus. Its nucleus also contains four neutrons. Since 4+4=8, the mass number of the helium atom is 8.
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